CNS Infectious Test 3- 5th Year- PMU

Description

CNS Infectious Test 3- 5th Year- PMU
Med Student
Quiz by Med Student , updated more than 1 year ago
Med Student
Created by Med Student over 4 years ago
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Resource summary

Question 1

Question
Which meningitis is characterized by the following CSF findings – lymphocytic pleocytosis, normal or slightly elevated protein and normal glucose level?
Answer
  • Viral
  • Purulent
  • Tuberculous

Question 2

Question
Meningeal irritation includes
Answer
  • nuchal rigidity, hyperesthesia
  • diminished tendon reflexes
  • altered mental status

Question 3

Question
Characteristic clinical manifestation of enteroviral infections is
Answer
  • Herpagina
  • Gingivostomatitis
  • Exudative pharyngitis

Question 4

Question
Which of the following statements regarding enteroviruses as causative agents of aseptic meningitis are NOT TRUE?
Answer
  • Enteroviruses account for up to 80% of cases of viral meningitis.in children
  • The clinical presentation in children is milder than in adults
  • Lymphocytes are predominant in the first 24 hours, later neutrophils prevail

Question 5

Question
Poliomyelitis is characterised by
Answer
  • flaccid asymmetric, proximal paralysis
  • flaccid symmetric, proximal paralysis
  • full recovery of the affected limb

Question 6

Question
The most common causative agents of pyogenic meningitis are
Answer
  • S.pneumoniae, N. meningitidis, H. influenzae
  • E. coli, S. aureus, Myc. tuberculosis
  • Salmonella spp., L. monocytogenes, St. epidermidis

Question 7

Question
Which of the following statements regarding the use of neuroimaging techniques (CT, MRI) in the diagnosis of HSV1 encephalitis are correct?
Answer
  • Focal lesion in the temporofrontal region is the most common finding
  • CT scanning is the most sensitive neuroimaging technique
  • Diffuse cerebral inflammation is the most common finding

Question 8

Question
The causative agents of poliomyelitis are
Answer
  • Enteroviruses
  • Coronaviruses
  • Paramixoviruses

Question 9

Question
Antivirals are used for therapy of
Answer
  • Enterovirus encephalitis
  • HSV1 encephalitis
  • Japanese encephalitis

Question 10

Question
Tetanus is characterised by
Answer
  • Altered consciousness
  • Intermittent muscle rigidity
  • Constant muscle rigidity and recurring contractions

Question 11

Question
Treatment of cerebral oedema includes
Answer
  • Diuretics — spironolacton
  • Diuretics - mannitol
  • Non-steroidal anti-inflammatory drugs

Question 12

Question
40-year old man was admitted to the ED because of progressive worsening headache and drooping right eyelid for the last 6 hours. Over the last week he felt uneasy, with throbbing headache, vomited twice. On presentation he was alert, T-37,4°C, with normal vital signs, mild nuchal rigidity, right n. abducens palsy, the remainder of physical examination was without abnormalities. His CXR showed a right apical opacity and ipsilateral hilar lymphadenopathy. Below are the results of the CSF examination and Gram stain: Appearance - turbid Cells- 159.10^6/l (90% neutrophils) Protein- 1.2 g/l Glucose- 1,5 mmol/l (blood glucose — 5,9 mmol/l) Gram stain- no bacteria seen Acid-fast stain- no bacteria seen Cryptococcus antigen- negative Culture- no bacterial growth Mycobacteria PCR- genus negative/ M. tuberculosis complex negative Mycobacteria culture- continuing Which specific infection needs to be considered in this clinical setting?
Answer
  • Tuberculous meninigitis
  • Cryptoccocal meningitis
  • CNS nocardiosis

Question 13

Question
40-year old man was admitted to the ED because of progressive worsening headache and drooping right eyelid for the last 6 hours. Over the last week he felt uneasy, with throbbing headache, vomited twice. On presentation he was alert, T-37,4°C, with normal vital signs, mild nuchal rigidity, right n. abducens palsy, the remainder of physical examination was without abnormalities. His CXR showed a right apical opacity and ipsilateral hilar lymphadenopathy. Below are the results of the CSF examination and Gram stain: Appearance - turbid Cells- 159.10^6/l (90% neutrophils) Protein- 1,2 g/l Glucose- 1,5 mmol/l (blood glucose — 5,9 mmol/l) Gram stain- no bacteria seen Acid-fast stain- no bacteria seen Cryptococcus antigen- negative Culture- no bacterial growth Myeobacteria PCR- genus negative/ M. tuberculosis complex negative Mycobacteria culture- continuing Do the results of microscopy rule out this diagnosis?
Answer
  • no, microscopy of CSF for AFB will get positive results in 25% of the cases
  • yes, because the are negative
  • no, because AFB will be sought in sputum rather than in CSF

Question 14

Question
Which type of meningitis is characterized by the following CSF findings – lymphocytic pleocytosis, elevated protein and decreased glucose level
Answer
  • viral
  • purulent
  • tuberculous

Question 15

Question
The rash of meningococcemia is
Answer
  • hemorrhagic necrotic, localized predominantly on the lower limbs and buttocks
  • vesicular, diffuse
  • vesicular, highly pruritic

Question 16

Question
The specific CNS complication of Chickenpox is
Answer
  • cerebellitis
  • meningitis serosa
  • polyradiculoneuritis - Guillain-Barre

Question 17

Question
Which of the following statements regarding tetanus is correct
Answer
  • Tetanospamin is an endotoxin that affects motor and sensory function
  • The disease is difficult to clinically differentiate from rabies because of the marked muscle spasm present in both
  • Metronidazole and Penicillin are antibiotics of choice

Question 18

Question
A 4 year-old girl presents with a macularpapular rash on her hands and feet and painful ulcers distributed anteriorly on her lips , tongue, palate and buccal mucosa. Systemic features and lymphadenopathy are absent. Which of the following viruses is most likely to have caused these disorder?
Answer
  • Enterovirus
  • Coronavirus
  • HSV-1

Question 19

Question
Empirical therapy for bacterial meningitis includes
Answer
  • 3rd generation Cephalosporins + Vancomycin
  • Penicillin + Metronidazole
  • 3rd generation Cephalosporins + Clindamycin

Question 20

Question
Serotherapy (antibodies based medications) is used for
Answer
  • Rabies
  • Tetanus
  • HSV1 encephalitis

Question 21

Question
Which of the following statements regarding leptospirosis IS NOT true
Answer
  • Leptospirosis is a biphasic illness with multiorgan involvement
  • Gentamycin is the antibiotic of choice
  • Infection is acquired during walking or bathing in rivers

Question 22

Question
Which of the following ARE NOT common clinical manifestations of HSV1 encephalitis
Answer
  • Drowsiness
  • Personality change
  • Diarrhoea

Question 23

Question
A 19-year-old freshman, living in a dormitory accommodation, took to his bed early one Friday evening, complaining of a flu-like illness and headache. The next morning he was found unresponsive with a widespread non-blanching rash. He was taken to the ED. Physical examination revealed unresponsive patient with signs of meningeal irritation, T-39,5°C,blood pressure 120/70 mmHg, heart rate 100 beat/min. A lumbar puncture was done after CT scan. Below are the results of the CSF examination and Gram stain: Appearance - turbid Cells - 800.10^6/l, neutrophils Glucose — 0.5 mmol/l (blood glucose - 7,0 mmol/l) Gram stain — no bacteria seen The whole freshman year had received a meningococcal vaccine prior to starting their course What do your think is the cause of this infection?
Answer
  • N. meningitis B
  • S. pneumonia
  • H. influenzae

Question 24

Question
A 19-year-old freshman, living in a dormitory accommodation, took to his bed early one Friday evening, complaining of a flu-like illness and headache. The next morning he was found unresponsive with a widespread non-blanching rash. He was taken to the ED. Physical examination revealed unresponsive patient with signs of meningeal irritation, T-39,5°C,blood pressure 120/70 mmHg, heart rate 100 beat/min. A lumbar puncture was done after CT scan. Below are the results of the CSF examination and Gram stain: Appearance - turbid Cells - 800.10^6/l, neutrophils Glucose — 0.5 mmol/l (blood glucose - 7,0 mmol/l) Gram stain — no bacteria seen The whole freshman year had received a meningococcal vaccine prior to starting their course Why was he not protected by the vaccine?
Answer
  • the vaccine is not immunogenic enough
  • N. meningitis b is not included in the vaccine
  • the vaccine is not properly administrated

Question 25

Question
Which meningitis is characterized by the following CSF findings — neutrophilic pleocytosis, elevated protein and decreased glucose level?
Answer
  • Viral
  • Purulent
  • Tuberculous

Question 26

Question
A 3-week-old boy developed focal seizures, lethargy and vomiting. Examination shows a bulging fontanelle and nuchal rigidity. Which of the following organisms should be suspected?
Answer
  • E.coli and Str. agalactiae
  • H. influenzae and N. meningitis
  • H. influenzae and S. pneumoniae

Question 27

Question
The majority of nonimmunized patients infected with poliovirus would be expected to experience which of the following symptoms
Answer
  • Aseptic meningitis
  • Flaccid paralysis of one or more extremities
  • Asymptomatic infection

Question 28

Question
Which of the following findings IS NOT characteristic of infant meningitis
Answer
  • Bulging fontanelle, Lessage sign
  • Distended abdomen
  • Cri encephalique

Question 29

Question
Meningeal irritation, prolonged and severe mental status impairment and focal neurological findings are common in
Answer
  • Meningoencephalitis
  • Encephalitis
  • Meningitis

Question 30

Question
Poliomyelitis is characterized by a
Answer
  • Flaccid asymmetric paralysis, proximal
  • Flaccid symmetric paralysis, proximal
  • Full recovery of the affected limb

Question 31

Question
Which patient with suspected bacterial meningitis should undergo CT of the head prior to lumbar puncture?
Answer
  • Infants
  • Those with focal neurological findings
  • It is a rule for every patient

Question 32

Question
Typical clinical manifestations of enterovirus infections are
Answer
  • Herpangina
  • Gingivostomatitis
  • Pneumonia

Question 33

Question
A 45-year-old man was brought to the ED by his wife after a new onset of seizure. He had been well until 48 hours prior when he had the abrupt onset of fever and headache . Over the next 2 days he exhibited bizarre behaviour. On physical examination he was minimally responsive without nuchal rigidity or focal neurological findings. A CT scan of the head showed diffuse inflammatory changes, greates in the left temporal lobe. Blood laboratory results - unremarkable . Below are the results of the CSF examination and Gram stain Appearance - turbid Erythrocytes- 700. 10^6/l Cells - 43.10^6/l, lymphocyte predominance Protein- 0.7 g/l Glucose- normal Gram stain- no bacteria seen What is the diagnosis likely to be?
Answer
  • Arboviral encephalitis
  • VZV encephalitis
  • HSV encephalitis

Question 34

Question
A 45-year-old man was brought to the ED by his wife after a new onset of seizure. He had been well until 48 hours prior when he had the abrupt onset of fever and headache . Over the next 2 days he exhibited bizarre behaviour. On physical examination he was minimally responsive without nuchal rigidity or focal neurological findings. A CT scan of the head showed diffuse inflammatory changes, greates in the left temporal lobe. Blood laboratory results - unremarkable . Below are the results of the CSF examination and Gram stain Appearance - turbid Erythrocytes- 700. 10^6/l Cells - 43.10^6/l, lymphocyte predominance Protein- 0.7 g/l Glucose- normal Gram stain- no bacteria seen What antimicrobial agent need to be considered?
Answer
  • Acyclovir
  • Ganoyclovir
  • Zanamivir

Question 35

Question
Which meningitis is characterized by cranial nerves palsies, CSF — with low glucose level and without response to empirical antibiotic therapy
Answer
  • Tuberculous
  • Purulent
  • Viral

Question 36

Question
Which diseases in not vaccine preventable
Answer
  • Lyme borreliosis
  • Poliomyelitis
  • Measles

Question 37

Question
The antibiotic of choice in treating diphtheria is
Answer
  • erythromycin - stops toxin production and eradicate shedding
  • quinolones
  • gentamicin

Question 38

Question
Strawberry tongue is characteristic of Ex which disease: - also in Kawasaki's disease
Answer
  • Scarlet fever
  • Measles
  • Chickenpox

Question 39

Question
Which disease requires antítoxin serum as a first urgent step in the management of the patient
Answer
  • measles
  • diphtheria
  • necrotizing fasciitis

Question 40

Question
The desquamation is a characteristic, albeit a late one, of which of the diseases
Answer
  • Measles
  • Scarlet fever
  • Impetigo

Question 41

Question
Invasive infection with Streptecoccus pyogenes is a severe complication of
Answer
  • Chickenpox
  • Prolonged hospitalization
  • EBV infection

Question 42

Question
Chickenpox rash is characterized by
Answer
  • maculae-papules-vesicles-crasts, in various stages of healing. - rashes appears in crops so have different healing
  • vesicular rash ina. dermatomal distribution - seen in shingles reinfection
  • maculae-papules-vesicles- pustulles- scabs, all in the same stage of development

Question 43

Question
Which virus has teratogenic effect in the first trimester of pregnancy
Answer
  • Rubella
  • Enteroviruses
  • Measles

Question 44

Question
A 21-old male presented to ED with 2 weeks of low-grade fevers, fatigue. and myalgias. O/P - alert, pharyngeal erythema without exudate. a painful ulcer on the right buccal mucose, cervical lymphadenopahy and a fine erythematous macular rash on his upper chest. He reported he was sexually active with both men and women. Which test should be used to confirm your suspicion
Answer
  • ELISA for HIV
  • HIV 24 antigen
  • VCA IgM for EBV

Question 45

Question
Which disease is vaccine preventable?
Answer
  • Scarlet fever
  • Measles
  • Exanthema subitum

Question 46

Question
Which of the following statements is typical for pharyngeal diphtheria
Answer
  • creamy bulky patches, firmly attached to the underlying tissues
  • whitish patches on the tonsils and buccal mucosa, easily removable
  • dirty gray patches, adherent to the. underlying tissues, spreading across the tonsils

Question 47

Question
In a case of infectious mononucleosis-like symptoms it is important to consider
Answer
  • primary HIV infection
  • neoplasms
  • syphilis

Question 48

Question
A 5-year-old girl recently immigrated with her parents to the USA a month ago presented with low-grade fever, bloody nasal discharge, and extensive neck swelling. Her immunization record was not available. She was difficult to understand because of the language barrier; but she seemed to be having difficulty breathing. O/P in distress, T 38.3°C. RR 40/min, HR 140/min, PR 90/60 mm, swollen neck, oropharynx - dense greyish-white membranes spreading across the tonsils and covering uvula and soft palate. What is the most likely diagnosis?
Answer
  • Infectious mononucleosis
  • Retropharyngeal abscess
  • Diphtheria

Question 49

Question
A 5-year-old girl recently immigrated with her parents to the USA a month ago presented with low-grade fever, bloody nasal discharge, and extensive neck swelling. Her immunization record was not available. She was difficult to understand because of language barrier; but she seemed to be having difficulty breathing. O/P in distress, T 38,3°C. RR 40/min, HR 140/min, PR 90/60 mm, swollen neck, oropharynx - dense greyish-white membranes spreading across the tonsils and covering uvula and soft palate. What should be the next step in the management of the patient?
Answer
  • ceftriaxone
  • aggressive rehydration
  • antitoxin

Question 50

Question
A 5-year-old girl recently immigrated with her parents to the USA a month ago presented with low-grade fever, bloody nasal discharge, and extensive neck swelling. Her immunization record was not available. She was difficult to understand because of language barrier; but she seemed to be having difficulty breathing. O/P in distress, T 38,3°C. RR 40/min, HR 140/min, PR 90/60 mm, swollen neck, oropharynx - dense greyish-white membranes spreading across the tonsils and covering uvula and soft palate. How this severe medical condition should have been prevented? It could be prevented with a diphtheria toxoid containing [blank_start]vaccine (DTP, DTaP)[blank_end] given as part of the immunisation schedules with appropriate [blank_start]boosters[blank_end] given. The close contacts should be tested and given a [blank_start]booster[blank_end] course of the vaccine also
Answer
  • vaccine (DTP, DTaP)
  • booster
  • boosters

Question 51

Question
The common complication of Chickenpox is
Answer
  • Cerebellitis
  • Meningitis serosa
  • Poliradiculonevrtis- Guillain Barre type

Question 52

Question
Tonsillitis, caused by EBV (Infectious mononucleosis) should be differentiated from
Answer
  • Diphteria
  • Necrotic angina
  • Streptococcal angina

Question 53

Question
The rash of meningococcemia is
Answer
  • hemorhagic-necrotic, localized predominantly in the lower limbs and the buttocks
  • vesicular, with diffuse localization
  • hives, variable

Question 54

Question
Which of the following statements concerning the Varicella-Zoster-Virus (VZV) infection is true?
Answer
  • Infant whose mother was ill with Herpes Zoster one week after birth, is at risk of severe neonatal varicella and should receive VZV immunoglobulin
  • most life-threatening complication of chickenpox during pregnancy is pneumonia
  • congenital varicella syndrome usually occurs in infants whose mothers have suffered from Chicken pox late in pregnancy

Question 55

Question
The rash of Measles is
Answer
  • maculopapular, confluent
  • vesiculopustular on intact skin
  • hemorrhagic, necrotic with irregular shapes and different sizes

Question 56

Question
The evolution of the rash of Chickenpox is
Answer
  • macula-papule-vesicle-crust
  • macula-papule-brown pigmentation
  • petechiae ecchymosis, suffusion

Question 57

Question
Pregnant in the 2nd LM has moprbilliform rash and negative serological test (RZHA) for Rubella What is the next step?
Answer
  • Therapeutic abortion by medical indications
  • Ribavirin therapy
  • Repeating the test after 3 weeks

Question 58

Question
The late complications of Scarlet fever the most often are
Answer
  • carditis, glomerulonephritis, synovitis
  • meningitis or encephalitis
  • mastoiditis, sinusitis or otitis

Question 59

Question
Typical for Diphtheria are
Answer
  • thick, dirty gray, removable hard deposits on the tonsils
  • whitish easily removable deposits on the tonsils and buccal mucosa
  • disease is widespread in Bulgaria

Question 60

Question
Which is NOT true of heterophile antibodies and Infectious mononucleosis?
Answer
  • in a typical clinical manifestation they are sufficient to confirm the diagnosis
  • in typical clinical manifestation with negative heterophile antibodies we are looking for antibodies to Ebstein-Bar virus
  • heterophile bodies are formed in mononucleosis caused by CMV

Question 61

Question
Patients With Chickenpox are contagious
Answer
  • 3 days after the onset
  • until the dropping of the crusts
  • until drying of all vesicles

Question 62

Question
A 2-year-old child was having fever from 5-6 days as well as dry cough and hoarse voice, From the day before he came his skin was turning blue after coughing, his voice became almost silent and he also became very restless. He was brought to the Emergency center. Clinical status: impaired condition, acrocyanosis. temperature to 38,6°C. visibly swollen cervical lymph nodes. View of the throat revealed edema pharynx, dirty gray shiny deposits covering the tonsils, uvula and soft palate, the child cried soundless voice inspiratory tachydyspnea- 40/min, breathing was shallow with a circulation, without audible wheezing, heart rate - 158/ min. The remaining objective examination was normal. The most likely diagnosis is
Answer
  • C. Diptheria
  • Streptococcus Group A
  • Erysipelothrix rhusiopathiae

Question 63

Question
A 2-year-old child was having fever from 5-6 days as well as dry cough and hoarse voice, From the day before he came his skin was turning blue after coughing, his voice became almost silent and he also became very restless. He was brought to the Emergency center. Clinical status: impaired condition, acrocyanosis. temperature to 38,6°C. visibly swollen cervical lymph nodes. View of the throat revealed edema pharynx, dirty gray shiny deposits covering the tonsils, uvula and soft palate, the child cried soundless voice inspiratory tachydyspnea- 40/min, breathing was shallow with a circulation, without audible wheezing, heart rate - 158/ min. The remaining objective examination was normal. The danger, in this case, is determined from
Answer
  • Asphyxia
  • Resorption the toxin, and impairment of peripheral nerves adjacent
  • Myocarditis

Question 64

Question
A 2-year-old child was having fever from 5-6 days as well as dry cough and hoarse voice, From the day before he came his skin was turning blue after coughing, his voice became almost silent and he also became very restless. He was brought to the Emergency center. Clinical status: impaired condition, acrocyanosis. temperature to 38,6°C. visibly swollen cervical lymph nodes. View of the throat revealed edema pharynx, dirty gray shiny deposits covering the tonsils, uvula and soft palate, the child cried soundless voice inspiratory tachydyspnea- 40/min, breathing was shallow with a circulation, without audible wheezing, heart rate - 158/ min. The remaining objective examination was normal. What does the most urgent treatment in case involve?
Answer
  • antibiotic
  • oxygen, corticosteroids, ready for intubations / tracheotomy
  • antitoxin serum

Question 65

Question
A 2-year-old child was having fever from 5-6 days as well as dry cough and hoarse voice, From the day before he came his skin was turning blue after coughing, his voice became almost silent and he also became very restless. He was brought to the Emergency center. Clinical status: impaired condition, acrocyanosis. temperature to 38,6°C. visibly swollen cervical lymph nodes. View of the throat revealed edema pharynx, dirty gray shiny deposits covering the tonsils, uvula and soft palate, the child cried soundless voice inspiratory tachydyspnea- 40/min, breathing was shallow with a circulation, without audible wheezing, heart rate - 158/ min. The remaining objective examination was normal. The most dangerous side effects due to serum were
Answer
  • anaphylaxis
  • serum sickness
  • paresis
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