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Physiology 2

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Block 1 questions
ivenkat
Quiz by ivenkat, updated more than 1 year ago
ivenkat
Created by ivenkat about 11 years ago
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Question 1

Question
Lung Volumes
Answer
  • Tidal volume is the amount of air inhaled with a normal breath from the resting level - about 500 ml
  • IRV - The max amount of additional air that can be inhaled beyond the tidal volume
  • ERV - the max amount of air that can be exhaled following a normal exhalation from the resting level
  • Residual volume - the amount of air that remains after a normal expiration
  • 1,2,3 are correct
  • all are correct

Question 2

Question
Lung Capacities which of the following is not true
Answer
  • TLC and FRC are 2 capacities with RV as part of the capacities
  • VC and IC are 2 capacities without RV
  • TLC = VC + RV
  • FRC = IRV + RV

Question 3

Question
Elastic recoil of chest wall and lungs determines FRC
Answer
  • True
  • False

Question 4

Question
Regarding FRC all are true except
Answer
  • Is what remains after a normal breath
  • FRC can be measured by spirometry
  • FRC increases with age
  • FRC decreases with lying down

Question 5

Question
With age all of the following are true except?
Answer
  • Increased RV
  • Increased FRC
  • Increased VC
  • None of the above

Question 6

Question
Lying down decreases FRC, VC is unchanged because of increased IRV
Answer
  • True
  • False

Question 7

Question
In pregnancy all of the following changes are true except?
Answer
  • Decreased ERV
  • Decreased RV
  • decreased FRC
  • decreased Tidal volume

Question 8

Question
Which of the following is the most reliable spirometry measurement
Answer
  • FVC
  • FEV1
  • FEF 25-75
  • all of the above

Question 9

Question
Highest airway resistance is seen in the mid sized bronchi
Answer
  • True
  • False

Question 10

Question
Men have greater lung capacity and volume than women, but both sexes have equal tidal volumes
Answer
  • True
  • False

Question 11

Question
all of the following are correctly matched except
Answer

Question 12

Question
In Obstructive lung disease all are true except?
Answer
  • FEV1 is decreased
  • FVC is decreased
  • FEV1/FVC is increased

Question 13

Question
In restrictive lung disease all are true except
Answer
  • FEV1 is decreased
  • FVC is increased
  • FEV1/FVC is increased

Question 14

Question
Methacholine challenge test differentiates between bronchial asthma and the other obstructive lung diseases like chronic bronchitis and emphysema
Answer
  • True
  • False

Question 15

Question
All of the following are restrictive lung diseases except?
Answer
  • Intrinsic lung diseases like interstitial fibrosis of lung or pneumonia
  • Extrinsic lung diseases that mechanically compress the lungs and limit their expansion
  • Neuromuscular diseases of the respiratory muscles
  • none of the above

Question 16

Question
TLC
Answer
  • Can be measured by Gas dilution method
  • Or by body plethysmography
  • Gas dilution method under estimates trapped gas
  • if TLC pleth/TLC gas dilution is > 1,2 trapped gas is present
  • all of the above are correct

Question 17

Question
Diffusing capacity (Dl CO)
Answer
  • Decreased in emphysema (obstructive lung disease)
  • decreased in interstitial lung disease (restrictive lung disease)
  • Increased in asthma (obstructive lung disease) - due to increased blood flow to lung
  • used to distinguish between intrinsic lung disease from extrinsic lung disease
  • all of the above are correct
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