Mer Scott
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PHCY310 Test sobre L17 Lab Tests (Asthma), creado por Mer Scott el 12/04/2019.

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L17 Lab Tests (Asthma)

Pregunta 1 de 5

1

Pneumonia will affect the gas exchange because it affects the alveolar spaces.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 2 de 5

1

Alveolar ventilation (Av) allows gas to move from the lungs to blood. An adequacy of flow to the lungs is required for adequate exchange. When the capillary flow is compromised, a mismatch will occur between . (I.e. even when alveolar ventilation is fine, if blood flow to the alveolar capillaries is poor the perfusion of gasses will be .)
Factors that affect pulmonary capillary flow include:
- pulmonary
- right dysfunction

Arrastra y suelta para completar el texto.

    capillary
    gas
    Av and perfusion
    poor
    embolism
    ventricular

Explicación

Pregunta 3 de 5

1

When PaCO2 gets high we breathe slower.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 4 de 5

1

Spirometry tests assess alveolar ventilation. A FEV/FVC (Forced Expiratory Volume (1s) & Forced Vital Capacity) ratio is usually .
Peak expiratory flow rate (L/min) values of PEFR depend on size, sex and age, but typically a healthy range for adults is L/min. PEFR tends to be less to small airways disease.

Obstructive diseases () reduce the expiration ability (reduce and ratio.) There is evidence of .
Restrictive diseases (, end stages of ) reduce the usable capacity (reduce , and FEV.)

Arrastra y suelta para completar el texto.

    0.8
    400 - 600
    sensitive
    asthma, COPD, bronchitis
    FEV1
    FEV/FVC
    reversibility
    fibrosis
    COPD
    FVC
    reduce

Explicación

Pregunta 5 de 5

1

Partial pressure of oxygen & carbon dioxide:
1. PaO2, partial pressure of oxygen in the arterial circulation
- PaO2 is dependent on O2 and pressure.
- Values typically cause symptoms.
2. PaCO2, partial pressure of CO2 in the arterial circulation
- Normal value is
- It is produced by during internal respiration
- Values typically cause symptoms

Arrastra y suelta para completar el texto.

    inspired
    atmospheric
    < 60 mmHg
    40 mmHg
    tissues
    > 50 mmHg

Explicación