Kathleen Jackson
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Module 2 EOT Exam Revision

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Kathleen Jackson
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2808NRS Human Pathophysiology and Pharmacology 2 (Module 2)

Pregunta 1 de 89

1

What is a low level of arterial oxygen termed?

Selecciona una de las siguientes respuestas posibles:

  • hypocapnia

  • hypoxaemia

  • normoxia

  • hypoxia

Explicación

Pregunta 2 de 89

1

Central cyanosis:

Selecciona una de las siguientes respuestas posibles:

  • is due to the formation of excess oxyhaemoglobin

  • describes bluing colouration in the lips and linings of the mouth

  • is a consequence of cyanide poisoning

  • all answers are correct

Explicación

Pregunta 3 de 89

1

Blood is considered to be acidotic as soon as:

Selecciona una de las siguientes respuestas posibles:

  • blood pH remains at 7.4, but signs of acidosis are otherwise evident

  • blood pH rises above 7.4

  • blood pH falls below 7.0

  • blood pH falls below 7.35

Explicación

Pregunta 4 de 89

1

Orthopnoea is:

Selecciona una de las siguientes respuestas posibles:

  • noisy breathing with stridor or rhonchi.

  • difficulty breathing when lying down.

  • waking up suddenly, coughing, and struggling for breath.

  • very deep, rapid respirations.

Explicación

Pregunta 5 de 89

1

Digital clubbing is a sign of:

Selecciona una de las siguientes respuestas posibles:

  • chronic hypocapnia

  • chronic hyperoxia

  • chronic hypoxia

  • chronic hypercapnia

Explicación

Pregunta 6 de 89

1

A 65-year-old female with emphysema presents to the ED for difficulty breathing. Physical exam reveals bluish skin and mucous membranes. This condition is referred to as:

Selecciona una de las siguientes respuestas posibles:

  • haemoptysis

  • hypothermia

  • cyanosis

  • haematemesis

Explicación

Pregunta 7 de 89

1

A 10-year-old female develops pneumonia following a urinary tract infection. Physical exam reveals subcostal and intercostal retractions. She reports that breathing is difficult and she feels she cannot get enough air. This condition is referred to as:

Selecciona una de las siguientes respuestas posibles:

  • hyperpnoea

  • dyspnoea

  • orthopnoea

  • cyanosis

Explicación

Pregunta 8 de 89

1

Reduced oxygenation of arterial blood is called:

Selecciona una de las siguientes respuestas posibles:

  • hypoxaemia

  • ischaemia

  • hypoxia

  • hypocapnia

Explicación

Pregunta 9 de 89

1

Paroxysmal nocturnal dyspnoea generally occurs with:

Selecciona una de las siguientes respuestas posibles:

  • left ventricular failure

  • hypertension

  • pulmonary fibrosis

  • asthma

Explicación

Pregunta 10 de 89

1

A 30-year-old male is experiencing respiratory failure. Which of the following lab values would be expected?

Selecciona una de las siguientes respuestas posibles:

  • low Pa O2

  • normal blood pH

  • low PaCO2

  • electrolyte imbalances

Explicación

Pregunta 11 de 89

1

A 1-year-old female is diagnosed with croup. Which of the following symptoms is most likely present?

Selecciona una de las siguientes respuestas posibles:

  • respiratory stridor and barking cough

  • haemoptysis and mucus production

  • high fever and dry cough

  • drooling and snoring

Explicación

Pregunta 12 de 89

1

A 30-year-old male prison inmate contracted tuberculosis during an outbreak. The organism that caused this condition is a:

Selecciona una de las siguientes respuestas posibles:

  • fungus

  • bacterium

  • parasite

  • virus

Explicación

Pregunta 13 de 89

1

A 1-year-old female is diagnosed with croup. The most likely cause of this disease is:

Selecciona una de las siguientes respuestas posibles:

  • acute hyperventilation

  • bacterial infection

  • viral infection

  • allergy

Explicación

Pregunta 14 de 89

1

A 6-month-old female presents with rhinorrhoea, cough, poor feeding, lethargy and fever. She is diagnosed with bronchiolitis. Which of the following is most likely causing her condition?

Selecciona una de las siguientes respuestas posibles:

  • parainfluenza virus

  • respiratory syncytial virus

  • group A beta-haemolytic streptococcus

  • haemophilus B influenzae

Explicación

Pregunta 15 de 89

1

This condition is an inflammatory response with extensive mucus production and submucosal oedema, resulting in widespread obstruction of bronchioles. It is of particular concern when present in infants.

Selecciona una de las siguientes respuestas posibles:

  • bronchiolitis

  • tonsillitis

  • histoplasmosis

  • pneumonia

Explicación

Pregunta 16 de 89

1

Pneumonia is caused by:

Selecciona una de las siguientes respuestas posibles:

  • chronic lung changes seen with ageing

  • atelectasis

  • viral or bacterial infections

  • use of anaesthetic agents in surgery

Explicación

Pregunta 17 de 89

1

What disease of the lungs is a contagious, airborne bacterial infection that causes fibrotic, calcified lesions that are visible on an X-ray?

Selecciona una de las siguientes respuestas posibles:

  • legionellosis

  • tuberculosis

  • diphtheria

  • lobar pneumonia

Explicación

Pregunta 18 de 89

1

This condition involves inflammation of the larynx, trachea and bronchi; is also known as laryngotracheobronchitis; involves copious mucus secretion; has a distinctive barking cough; and is potentially dangerous in infants.

Selecciona una de las siguientes respuestas posibles:

  • rhinitis

  • laryngeal pneumonia

  • croup

  • pertussis

Explicación

Pregunta 19 de 89

1

A 50-year-old male with a 30-year history of smoking was diagnosed with lung cancer. He was previously exposed to air pollution, asbestos and radiation at his job. Which of the following most likely had the greatest impact on development of his cancer?

Selecciona una de las siguientes respuestas posibles:

  • radiation

  • cigarette smoke

  • asbestos

  • air pollution

Explicación

Pregunta 20 de 89

1

Which type of lung cancer is most commonly associated with a history of smoking?

Selecciona una de las siguientes respuestas posibles:

  • small cell carcinoma

  • squamous cell carcinoma

  • mesothelioma

  • adenocarcinoma

Explicación

Pregunta 21 de 89

1

Clinical manifestations of acute sinusitis usually include:

Selecciona una de las siguientes respuestas posibles:

  • bad breath and sore throat

  • copious frothy sputum and dyspnoea

  • severe localized pain in the facial bone and tenderness in the face

  • serous nasal discharge and chronic cough

Explicación

Pregunta 22 de 89

1

What are typical signs and symptoms of epiglottitis?

Selecciona una de las siguientes respuestas posibles:

  • Sudden fever, sore throat, and drooling saliva

  • Hyperinflation of the chest and stridor

  • Hoarse voice and barking cough

  • Sneezing, mild cough, and fever

Explicación

Pregunta 23 de 89

1

A nurse is providing care for an older, previously healthy adult male has been diagnosed with pneumococcal pneumonia. Which of the following signs and symptoms is the nurse most likely to encounter?

Selecciona una de las siguientes respuestas posibles:

  • The patient will lack lung consolidation and will have little sputum production.

  • High fever and chills, productive cough, crackles progressing to absence of breath sounds in affected lobes.

  • Copious bloody sputum and diffuse chest pain and may lose his cough reflex.

  • Hypotensive and afebrile and may manifest cognitive changes.

Explicación

Pregunta 24 de 89

1

What would be the most effective compensation for chronic respiratory acidosis?

Selecciona una de las siguientes respuestas posibles:

  • The kidneys reabsorbing more hydrogen ions

  • The kidneys producing more lactic acid

  • The kidneys eliminating more bicarbonate ions

  • The kidneys producing more bicarbonate ions

Explicación

Pregunta 25 de 89

1

Which patient is most likely to have abnormalities in breathing regulation?

Selecciona una de las siguientes respuestas posibles:

  • A 23-year-old male who has an injury to his frontal lobe following a sports injury

  • A 66-year-old male with temporal lobe infarcts secondary to a stroke

  • A 34-year-old male with damage to his upper and lower pons following a blow to the back of the head

  • A 45-year-old female with a spinal cord injury at C7 following a motor vehicle accident

Explicación

Pregunta 26 de 89

1

The production of yellowish-green, cloudy, thick sputum is often an indication of:

Selecciona una de las siguientes respuestas posibles:

  • damage of lung tissue due to smoking

  • emphysema

  • bacterial infection

  • cancer tumour

Explicación

Pregunta 27 de 89

1

A 50-year-old male with diabetes did not take his medication and is now in metabolic acidosis. He is experiencing Kussmaul respirations that can be characterised by:

Selecciona una de las siguientes respuestas posibles:

  • very slow inhalations and rapid expirations.

  • rapid respirations with periods of apnoea.

  • an increased ventilatory rate, large tidal volumes and no expiratory pause.

  • audible wheezing or stridor.

Explicación

Pregunta 28 de 89

1

Which of the following describes lobar pneumonia?

Selecciona una de las siguientes respuestas posibles:

  • Opportunistic bacteria causing low-grade fever with cough and thick greenish sputum

  • Viral infection causing nonproductive cough and pleuritic pain

  • Insidious onset, diffuse interstitial infection

  • Sudden onset of fever and chills, with rales and rusty sputum

Explicación

Pregunta 29 de 89

1

What are early signs and symptoms of infectious rhinitis?

Selecciona una de las siguientes respuestas posibles:

  • Copious purulent sputum, particularly in the morning.

  • Serous nasal discharge, congestion, and sneezing.

  • Harsh barking cough and wheezing.

  • Purulent nasal discharge and periorbital pain.

Explicación

Pregunta 30 de 89

1

Anxiety-provoked hyperventilation will:

Selecciona una de las siguientes respuestas posibles:

  • increase PCO2 quite markedly, and increase PO2 to a similar extent

  • decrease PCO2 quite markedly, and increase PO2 to small extent

  • increase PO2 significantly, and increase PCO2 slightly

  • will not affect PCO2 but will increase PO2 significantly

Explicación

Pregunta 31 de 89

1

A 20-year-old male is in acute pain. An arterial blood gas reveals decreased carbon dioxide levels. Which of the following is the most likely cause?

Selecciona una de las siguientes respuestas posibles:

  • hypoventilation

  • hyperventilation

  • pain neurons producing bicarbonate buffer

  • apnoea

Explicación

Pregunta 32 de 89

1

Changes in PCO2 tend to affect the pH of blood.

Selecciona una de las siguientes respuestas posibles:

  • False, blood pH is largely unaffected by PCO2.

  • True, and decreases in PCO2 tend to decrease pH.

  • True, and increases in PCO2 tend to decrease blood pH.

  • True, and increases in PCO2 tend to increase pH.

Explicación

Pregunta 33 de 89

1

Obstruction in the upper airway is usually indicated by:

Selecciona una de las siguientes respuestas posibles:

  • rales

  • wheezing

  • stridor

  • orthopnoea

Explicación

Pregunta 34 de 89

1

A 28-year-old male complains to his GP that he has had a cold for a week and is coughing up bloody secretions. This condition is referred to as:

Selecciona una de las siguientes respuestas posibles:

  • haematemesis.

  • haemoptysis.

  • cyanosis.

  • rhinitis.

Explicación

Pregunta 35 de 89

1

How does severe hypoxia develop with pneumonia?

Selecciona una de las siguientes respuestas posibles:

  • Oxygen diffusion is impaired by the congestion

  • Acidosis depresses respirations

  • Too painful to breath

  • Inflammatory exudate absorbs oxygen from the alveolar air

Explicación

Pregunta 36 de 89

1

A 20-year-old male presents to his GP complaining of shortness of breath when lying down. This condition is referred to as:

Selecciona una de las siguientes respuestas posibles:

  • dyspnoea on exertion.

  • orthostatic tachypnoea.

  • orthopnoea.

  • sleep apnoea.

Explicación

Pregunta 37 de 89

1

A pneumonia that occurs 48 hours or more after admission to the hospital is considered

Selecciona una de las siguientes respuestas posibles:

  • hospital-acquired pneumonia.

  • health care–associated.

  • viral pneumonia.

  • community-acquired pneumonia.

Explicación

Pregunta 38 de 89

1

What would hypercapnia cause?

Selecciona una de las siguientes respuestas posibles:

  • Respiratory acidosis

  • Decreased respirations

  • Decreased carbonic acid in the blood

  • Increased blood Ph

Explicación

Pregunta 39 de 89

1

Light bubbly or crackling breathing sounds associated with serous secretions are called:

Selecciona una de las siguientes respuestas posibles:

  • rhonchi

  • wheezing

  • rales

  • stridor

Explicación

Pregunta 40 de 89

1

The extrinsic form of asthma is characterised by:

Selecciona una de las siguientes respuestas posibles:

  • the release of chemical mediators from immune cells in lung tissue

  • an autonomic nervous system imbalance

  • the dominance of the parasympathetic stimulation of the airways

  • a tendency to develop in older individuals

Explicación

Pregunta 41 de 89

1

Which one of the following antiasthma agents acts directly on intracellular cAMP levels?

Selecciona una de las siguientes respuestas posibles:

  • Methylxanthines

  • β agonists

  • Leukotriene receptor antagonists

  • Muscarinic antagonists

Explicación

Pregunta 42 de 89

1

A 13-year-old female is diagnosed with asthma. Which of the following should she recognise as part of an asthmatic attack?

Selecciona una de las siguientes respuestas posibles:

  • bradycardia

  • headache

  • chest pain

  • wheezing

Explicación

Pregunta 43 de 89

1

Asthma is thought to be caused by:

Selecciona una de las siguientes respuestas posibles:

  • an autosomal recessive trait.

  • excessive use of antibiotics as a young child.

  • interactions between genetic and environmental factors.

  • autoimmunity.

Explicación

Pregunta 44 de 89

1

In asthma, _____ is (are) reduced.

Selecciona una de las siguientes respuestas posibles:

  • dead space

  • expiratory flow rates

  • lung volumes

  • air trapping

Explicación

Pregunta 45 de 89

1

A 52-year-old female presents with chronic bronchitis. Tests reveal closure of the airway during expiration. This condition is most likely caused by:

Selecciona una de las siguientes respuestas posibles:

  • thinning smooth muscle in the bronchioles

  • hyperventilation

  • ventilation-perfusion mismatch

  • thick mucus from hypertrophied glands

Explicación

Pregunta 46 de 89

1

Individuals with a recent diagnosis of emphysema most often present with:

Selecciona una de las siguientes respuestas posibles:

  • dyspnoea

  • cyanosis

  • cor pulmonale

  • a productive cough

Explicación

Pregunta 47 de 89

1

A 53-year-old male with a 20-year history of smoking is diagnosed with emphysema. His airways are obstructed because of:

Selecciona una de las siguientes respuestas posibles:

  • infection and inflammation

  • airway oedema

  • excessive mucous production

  • loss of elastic recoil

Explicación

Pregunta 48 de 89

1

A 60-year-old female with emphysema is having difficulty expiring a given volume of air. She is most likely experiencing _____ pulmonary disease.

Selecciona una de las siguientes respuestas posibles:

  • restrictive

  • pleuritic

  • atelectatic

  • obstructive

Explicación

Pregunta 49 de 89

1

A 45-year-old male presents with chronic bronchitis of 5 months’ duration. Which of the following is most likely to cause this condition?

Selecciona una de las siguientes respuestas posibles:

  • cigarette smoke

  • chronic asthma

  • air pollution

  • recurrent pneumonia

Explicación

Pregunta 50 de 89

1

Which of the following activities does NOT require muscle contractions and energy?

Selecciona una de las siguientes respuestas posibles:

  • Forced expiration

  • Quiet expiration

  • Quiet inspiration

  • Forced inspiration

Explicación

Pregunta 51 de 89

1

Which of the following causes bronchodilation?

Selecciona una de las siguientes respuestas posibles:

  • Drugs that block b2-adrenergic receptors

  • Noradrenaline

  • Histamine

  • Parasympathetic nervous system

Explicación

Pregunta 52 de 89

1

What is the pathophysiology of an acute attack of extrinsic asthma?

Selecciona una de las siguientes respuestas posibles:

  • Hyporesponsive mucosa

  • Continuous severe attacks unresponsive to medication

  • A hypersensitivity reaction involving release of chemical mediators

  • Gradual degeneration and fibrosis

Explicación

Pregunta 53 de 89

1

Which of the following is typical of progressive emphysema?

Selecciona una de las siguientes respuestas posibles:

  • Tidal volume increases.

  • Forced expiratory volume increases.

  • Residual lung volume increases.

  • Vital capacity increases.

Explicación

Pregunta 54 de 89

1

Cystic fibrosis is transmitted as a/an:

Selecciona una de las siguientes respuestas posibles:

  • chromosomal defect.

  • X-linked recessive gene.

  • autosomal dominant gene.

  • autosomal recessive gene.

Explicación

Pregunta 55 de 89

1

Infant respiratory distress syndrome is initiated by:

Selecciona una de las siguientes respuestas posibles:

  • excessive production of mucus and elastic tissue

  • insufficient production of mucus and elastic tissue

  • excessive production of surfactant

  • insufficient production of surfactant

Explicación

Pregunta 56 de 89

1

An iatrogenic cause of pulmonary oedema is:

Selecciona una de las siguientes respuestas posibles:

  • left sided heart failure

  • trauma resulting in pulmonary bleeding

  • incorrect insertion of nasogastric feeding tube

  • kidney failure

Explicación

Pregunta 57 de 89

1

The term atelectasis describes:

Selecciona una de las siguientes respuestas posibles:

  • fibrotic restriction on lung expansion

  • over inflation of the lungs

  • dilation of bronchi, but not of alveoli

  • partial or complete collapse of a lung

Explicación

Pregunta 58 de 89

1

These inhaled particles are not able to be removal via phagocytosis, an are able to penetrate the alveolar wall. Prolonged exposure may lead to mesothelioma.

Selecciona una de las siguientes respuestas posibles:

  • asbestos fibres

  • coal dust particles

  • silicate particles

  • all answers are correct

Explicación

Pregunta 59 de 89

1

Restrictive lung disorders may be divided into two groups based on:

Selecciona una de las siguientes respuestas posibles:

  • patient history of obesity and exposure to other COPD.

  • previous lung disease and cardiovascular disorders.

  • anatomical abnormality and lung disease damage, impairing expansion.

  • smoking history and congenital defects.

Explicación

Pregunta 60 de 89

1

Which of the following is a manifestation of a simple closed pneumothorax?

Selecciona una de las siguientes respuestas posibles:

  • Asymmetrical chest movements

  • Tracheal deviation toward the unaffected lung

  • Increased breath sounds on the affected side

  • Decreased respiratory rate

Explicación

Pregunta 61 de 89

1

What is caused by frequent inhalation of irritating particles such as silica?

Selecciona una de las siguientes respuestas posibles:

  • Frequent bronchospasm

  • Fibrosis and loss of compliance

  • Distorted shape of the thorax

  • Increased number of mucus-producing glands

Explicación

Pregunta 62 de 89

1

Pulmonary oedema causes severe hypoxia because of:

Selecciona una de las siguientes respuestas posibles:

  • interference with expansion of the lungs

  • decreased diffusion of carbon dioxide from the alveoli

  • decreased recoil of lungs and ineffective expiration

  • constant cough and haemoptysis

Explicación

Pregunta 63 de 89

1

A COPD patient asks what medications are prescribed to help his breathing.

Selecciona una de las siguientes respuestas posibles:

  • Atenolol, a beta-blocker

  • Salbutemol, a bronchodilator

  • Alprazolam, a benzodiazepine

  • Sildenafil, a vasodilator

Explicación

Pregunta 64 de 89

1

Which of the following residents of a long-term care facility is most likely to be exhibiting the signs and symptoms of chronic obstructive pulmonary disease (COPD)?

Selecciona una de las siguientes respuestas posibles:

  • An 81-year-old male who has a productive cough and recurrent respiratory infections

  • A 79-year-old lifetime smoker who is complaining of shortness of breath and pain on deep inspiration

  • An 81-year-old smoker who has increased exercise intolerance, a fever, and increased white blood cells

  • An 88-year-old female who experiences acute shortness of breath and airway constriction when exposed to tobacco smoke

Explicación

Pregunta 65 de 89

1

The primary pathophysiological problem faced by sufferers of emphysema is:

Selecciona una de las siguientes respuestas posibles:

  • bronchoconstriction

  • lack of expiratory recoil

  • inability to draw sufficient air into the upper airways

  • occlusion due to excessive mucus production

Explicación

Pregunta 66 de 89

1

Which of the following should not be applied, or advised, to someone suffering chronic bronchitis?

Selecciona una de las siguientes respuestas posibles:

  • keep well hydrated

  • cough suppressant

  • bronchodilator

  • mucolytic agents

Explicación

Pregunta 67 de 89

1

A patient is in an urgent care center with an acute asthma attack, which medication will be used for initial treatment?

Selecciona una de las siguientes respuestas posibles:

  • An anticholinergic such as ipratropium

  • A short-acting beta2 agonist

  • A corticosteroid

  • A long-acting beta2 agonist

Explicación

Pregunta 68 de 89

1

A group of common chronic respiratory disorders characterized by tissue degeneration and respiratory obstruction is called:

Selecciona una de las siguientes respuestas posibles:

  • Mesothelioma

  • COPD

  • CF

  • Pulmonary fibrosis

Explicación

Pregunta 69 de 89

1

All of the following are expected with infant respiratory distress syndrome EXCEPT:

Selecciona una de las siguientes respuestas posibles:

  • fluid and protein in the alveoli

  • pulmonary vasoconstriction

  • severe hypoxia

  • respiratory alkalosis

Explicación

Pregunta 70 de 89

1

________ describes any parenchymal lung disease caused by inhalation of inorganic dusts.

Selecciona una de las siguientes respuestas posibles:

  • Pneumonia

  • Infant Respiratory Distress syndrome

  • Pneumoconiosis

  • Hypersensitive pneumonitis

Explicación

Pregunta 71 de 89

1

Which of the following clinical findings would be most closely associated with a client who has interstitial lung disease in comparison to chronic obstructive pulmonary disease (COPD)?

Selecciona una de las siguientes respuestas posibles:

  • Increased FVC

  • Reduced FEV1/FVC

  • Decreased total lung capacity

  • Reduced expiratory flow rates

Explicación

Pregunta 72 de 89

1

Transudative pleural effusion arises because of:

Selecciona una de las siguientes respuestas posibles:

  • constriction of bronchial airways

  • decreased levels of proteins in blood

  • decreased capillary hydrostatic pressure

  • all answers are correct

Explicación

Pregunta 73 de 89

1

Cystic fibrosis, as manifested in the lungs, is characterised by:

Selecciona una de las siguientes respuestas posibles:

  • hyperplasia of smooth muscle cells

  • presence of abnormally viscous mucus

  • an abnormal fibrotic response

  • production of copious watery mucus

Explicación

Pregunta 74 de 89

1

Which of the following is NOT a cause of pulmonary oedema?

Selecciona una de las siguientes respuestas posibles:

  • Hyperproteinemia

  • Left-sided congestive heart failure

  • Inhalation of toxic gases

  • Excessive blood volume (overload)

Explicación

Pregunta 75 de 89

1

Which statement does NOT apply to emphysema?

Selecciona una de las siguientes respuestas posibles:

  • The surface area available for gas exchange is greatly reduced.

  • A genetic defect may lead to breakdown of elastic fibers.

  • Expiration is impaired.

  • The ventilation/perfusion ratio remains constant.

Explicación

Pregunta 76 de 89

1

During an acute asthma attack, how does respiratory obstruction occur?
1. Relaxation of bronchial smooth muscle
2. Edema of the mucosa
3. Increased secretion of thick, tenacious mucus
4. Contraction of elastic fibers

Selecciona una de las siguientes respuestas posibles:

  • 1, 2

  • 1, 3

  • 2, 3

  • 2, 4

Explicación

Pregunta 77 de 89

1

Alpha-1 antitrypsin deficiency is associated with:

Selecciona una de las siguientes respuestas posibles:

  • asthma

  • emphysema

  • cystic fibrosis

  • chronic bronchitis

Explicación

Pregunta 78 de 89

1

Why does asthma result in fluid accumulation in the pulmonary interstitium?

Selecciona una de las siguientes respuestas posibles:

  • because of pulmonary artery hypotension.

  • because of increased capillary permeability.

  • because of increased, internal mucous secretion.

  • None of the above; fluid may accumulate within the lumen of the airways, but it does not accumulate in the lung interstitium.

Explicación

Pregunta 79 de 89

1

A patient is admitted for a relapse for sarcoidosis. Knowing this is usually caused by an inflammatory process, the nurse can anticipate administering.

Selecciona una de las siguientes respuestas posibles:

  • a corticosteroid.

  • an salmeterol inhaler.

  • aspirin.

  • a bronchodilator.

Explicación

Pregunta 80 de 89

1

Which of the following statements best captures the etiology of the acute response phase of extrinsic (atopic) asthma?

Selecciona una de las siguientes respuestas posibles:

  • Chemical mediators are released from presensitized mast cells.

  • IgG production is heightened as a consequence of exposure to an allergen.

  • Epithelial injury and edema occur along with changes in mucociliary function.

  • Airway remodeling results in airflow limitations.

Explicación

Pregunta 81 de 89

1

What is the cause of chronic bronchitis?

Selecciona una de las siguientes respuestas posibles:

  • Deficit of enzymes, preventing tissue degeneration.

  • Hypersensitivity to parasympathetic stimulation in the bronchi.

  • Chronic irritation, inflammation, and recurrent infection of the larger airways.

  • A genetic defect causing excessive production of mucus.

Explicación

Pregunta 82 de 89

1

Destruction of alveolar walls and septae is a typical change in:

Selecciona una de las siguientes respuestas posibles:

  • cystic fibrosis.

  • emphysema.

  • acute asthma.

  • chronic bronchitis.

Explicación

Pregunta 83 de 89

1

With a tension pneumothorax, which factors contribute to severe hypoxia?

Selecciona una de las siguientes respuestas posibles:

  • More air leaving the pleural cavity on expiration than entering with inspiration.

  • Shift of the mediastinal contents toward the affected lung.

  • Decreasing compression of the inferior vena cava.

  • Continually increasing pressure on the unaffected lung.

Explicación

Pregunta 84 de 89

1

Hypertrophy of goblet cells, decreased activity of the mucociliary escalator, and cor pulmonale, are most likely to occur in:

Selecciona una de las siguientes respuestas posibles:

  • acute bronchitis

  • chronic bronchitis

  • asthma

  • early stage emphysema

Explicación

Pregunta 85 de 89

1

Why does cor pulmonale develop with chronic pulmonary disease?

Selecciona una de las siguientes respuestas posibles:

  • Demands on the left ventricle are excessive.

  • Pulmonary fibrosis and vasoconstriction increase vascular resistance.

  • Blood viscosity is increased, adding to cardiac workload.

  • The right ventricle pumps more blood than the left ventricle.

Explicación

Pregunta 86 de 89

1

Loss of interstitial elasticity in the lungs is a hallmark of:

Selecciona una de las siguientes respuestas posibles:

  • emphysema

  • chronic bronchitis

  • asthma

  • all of the above

Explicación

Pregunta 87 de 89

1

Which of the following is typical of chronic bronchitis?

Selecciona una de las siguientes respuestas posibles:

  • Decreased activity of the mucous glands

  • Overinflation of bronchioles

  • Air trapping by excessive mucus plugs

  • Formation of blebs or bullae on the lung surface

Explicación

Pregunta 88 de 89

1

A physician is providing care for a child who has a diagnosis of cystic fibrosis (CF). Place the following pathphysiological events of CF in chronological order.
1) Airway obstruction
2) Recurrent pulmonary infections
3) Impaired Cl transport
4) Decreased water content of mucociliary blanket
5) Increased Na+ absorption

Selecciona una de las siguientes respuestas posibles:

  • 1,4,3,5,2

  • 5,3,4,1,2

  • 3,5,4,1,2

  • 3,4,5,1,2

Explicación

Pregunta 89 de 89

1

What causes the expanded anteroposterior (A-P) thoracic diameter (barrel chest) in patients with emphysema?

Selecciona una de las siguientes respuestas posibles:

  • Dilated bronchi and increased mucous secretions

  • Recurrent damage to lung tissues

  • Air trapping and hyperinflation

  • Persistent coughing to remove mucus

Explicación