Respiratory System Quiz 2005 RULES 1.Write your name at top of a sheet of paper 2.For each question...
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Transcript of Respiratory System Quiz 2005 RULES 1.Write your name at top of a sheet of paper 2.For each question...
Respiratory System Quiz 2005
RULES
1. Write your name at top of a sheet of paper
2. For each question only one answer is correct
3. Circle correct answer. If you change your mind, cross out wrong answer and circle the other.
4. Any unclear answers are incorrect
5. Questions about accuracy or clarity of answers will not be entertained!
Question 2
In a healthy person a typical value for PCO2 in pulmonary venous blood is:
a) 4.0 kPa
b) 5.3 kPa
c) 6.1 kPa
d) 13.3 kPa
Question 3
The rate of alveolar ventilation is equal to:
a) Respiratory rate x (dead space volume - tidal volume)
b) Respiratory rate x (tidal volume - dead space volume)
c) (Respiratory rate x tidal volume) - dead space volume
d) (Respiratory rate x dead space volume) - tidal volume
Question 4
In a healthy subject, breathing 100% oxygen will more than double :
a) arterial oxyhaemoglobin concentration
b) arterial oxygen content
c) arterial oxygen saturation
d) arterial oxygen partial pressure
Question 5
Clara cells:
a) are another name for Goblet cells
b) ingest inhaled foreign particles
c) produce antiproteases
d) sequester inflammatory cells by release of chemotactic agents
Question 6
Type 2 pneumocytes:
a) secrete surfactant
b) secrete mucous
c) are ciliated
d) are found predominantly in small bronchioles
Question 7
Emphysema is :
a) an abscess within the lungs
b) an obstructive lung disease
c) a restrictive lung disease
d) an allergic lung disease
Question 8
Functional residual capacity (FRC) is the volume of the lungs:
a) at the end of a maximal expiration
b) at the beginning of a quiet expiration
c) at the end of a quiet expiration
d) when intrapleural pressure is zero
Question 9
The phrenic nerve is formed from branches of the:
a) cranial nerves
b) cervical nerves
c) thoracic nerves
d) lumbar nerves
Question 10
When you fall asleep your:
a) ventilation will increase
b) upper airways resistance will decrease
c) arterial PCO2 will increase
d) fairy godmother will tidy your room
Question 11
In the pulmonary circulation, resistance to blood flow:
a) increases during exercise
b) is about the same as in the systemic circulation
c) is less than in the systemic circulation
d) is decreased during hypoxia
Question 12
Which of the following does not directly cause pulmonary oedema:
a) decreased plasma colloidal osmotic pressure
b) left heart failure
c) right heart failure
d) increased capillary permeability
Question 13
At a normal level of alveolar ventilation, ventilation-perfusion mismatching will
most likely lead to the following composition of arterial blood:
a) A low PO2 and a raised PCO2
b) A low PO2 and a normal PCO2
c) A normal PO2 and a raised PCO2
d) A low PO2 and a low PCO2
Question 14
Pulmonary surfactant:
a) reduces surface tension at the liquid-air interface within alveoli
b) production in the foetus is depressed by treatment with steroids
c) is a polypeptide
d) reduces lung compliance
Question 15
The apnoeic threshold:
a) If the level of oxygen rises above this threshold breathing will stop
b) If the level of oxygen falls below this threshold breathing will stop
c) If the level of carbon dioxide rises above this threshold breathing will stop
d) If the level of carbon dioxide falls below this threshold breathing will stop
Question 16
On histological examination a squamous cell carcinomia of the
lungs will typically display:
a) glandular differentiation
b) Langhans’ giant cells
c) granulomatous tissue
d) keratinisation
Question 17
In an asthmatic patient atopy:
a) is more common in adults than children
b) can be assessed using skin prick tests
c) is another term for bronchial hyper-reactivity
d) can be cured with a course of inhaled steroids
Question 18
Inflammation in allergic asthma does NOT involve:
a) IgE
b) IL4
c) T2 lymphocytes
d) degranulation of alveolar macrophages
Question 19
The most common cause of community acquired pneumonia is:
a) streptococcus pneumoniae
b) mycoplasma pneumoniae
c) legionella pneumophilia
d) haemophilius influenzae
Question 20
Which of the following cannot be measured by simple spirometry:
a) Residual volume
b) Inspiratory capacity
c) Vital capacity
d) Tidal volume
Question 21
The FEV1/FVC ratio:
a) Is dependent on the subject’s effort
b) Estimates the severity of restrictive lung disease
c) Can be measured with a peak flow meter
d) Is lower than average in people who row for Imperial College
Question 22