RCP 550 Pulmonary Function Testing questions with
verified answers
_______mL of gas is used with ______% helium for the helium dilution
test. Ans✓✓✓600; 10
50-60% of the FVC is exhaled in______ seconds. Ans✓✓✓0.5
75-85% of FVC is exhaled in______ seconds. Ans✓✓✓1
94% of FVC is exhaled in _____ seconds. Ans✓✓✓2
97% of FVC is exhaled in______seconds. Ans✓✓✓3
As the patient's exhaled gas flows through the respirometer, it rotates
_______ within the device. Through a gearworks mechanism, the
movement of it is indicated on a dial calibrated in liters. Ans✓✓✓vanes
Before-and-After Bronchodilator Studies Ans✓✓✓Determine the
reversibility of lung disfunctions and the effectiveness of the
bronchodilator.
CO is used in DLCO because of its _________ ________for Hb.
Ans✓✓✓increased affinity
,CO keeps the partial pressure of CO in the capillaries_______, and it
diffuses ________across the alveolar-capillary membrane.
Ans✓✓✓low; rapidly
Complete nitrogen washout occurs in about ______ minutes.
Ans✓✓✓7
Diffusion capacity measurement evaluates how well gas diffuses across
the ______-______membrane into the______ capillaries.
Ans✓✓✓alveolar-capillary; pulmonary
Diffusion capacity of the lung Ans✓✓✓Represent gas exchange
capability of the lungs.
DLCO will be decreased in the following situations: Ans✓✓✓1. O2
toxicity
2. Emphysema
3. Sarcoidosis
4. Edema
5. Asbestosis
During a methacholine challenge test, a_______ should be present and
resuscitation equipment should be readily available. Ans✓✓✓physician
During body plethysmography, a pressure transducer measures pressures
at the______ and inside the________ Ans✓✓✓airway; chamber
, During helium dilution test, CO2 is removed by a CO2_________
Ans✓✓✓absorbent
During helium dilution test, helium is diluted until _________ is
reached. This takes about ______ minutes. Ans✓✓✓equilibrium; 7
During helium dilution test, the patient is instructed to breath normally,
and at the end of normal ________ is connected to the sytem.
Ans✓✓✓exhalation
During nitrogen washout test, the patient breaths ______% oxygen to
wash out the nitrogen; nitrogen concentration in the lungs is
approximately_______%. Ans✓✓✓100; 79
During the nitrogen washout test, the _______volume is monitored and
recorded and nitrogen percentages are measured. Ans✓✓✓exhaled
During the V/Q scan, the patient inhales radioactive gas_________ and
hold breath for ______ to______ seconds. Ans✓✓✓xenon; 10-20
seconds
ERV is measured directly by spirometry from a_______ Ans✓✓✓Slow
Vital Capacity
verified answers
_______mL of gas is used with ______% helium for the helium dilution
test. Ans✓✓✓600; 10
50-60% of the FVC is exhaled in______ seconds. Ans✓✓✓0.5
75-85% of FVC is exhaled in______ seconds. Ans✓✓✓1
94% of FVC is exhaled in _____ seconds. Ans✓✓✓2
97% of FVC is exhaled in______seconds. Ans✓✓✓3
As the patient's exhaled gas flows through the respirometer, it rotates
_______ within the device. Through a gearworks mechanism, the
movement of it is indicated on a dial calibrated in liters. Ans✓✓✓vanes
Before-and-After Bronchodilator Studies Ans✓✓✓Determine the
reversibility of lung disfunctions and the effectiveness of the
bronchodilator.
CO is used in DLCO because of its _________ ________for Hb.
Ans✓✓✓increased affinity
,CO keeps the partial pressure of CO in the capillaries_______, and it
diffuses ________across the alveolar-capillary membrane.
Ans✓✓✓low; rapidly
Complete nitrogen washout occurs in about ______ minutes.
Ans✓✓✓7
Diffusion capacity measurement evaluates how well gas diffuses across
the ______-______membrane into the______ capillaries.
Ans✓✓✓alveolar-capillary; pulmonary
Diffusion capacity of the lung Ans✓✓✓Represent gas exchange
capability of the lungs.
DLCO will be decreased in the following situations: Ans✓✓✓1. O2
toxicity
2. Emphysema
3. Sarcoidosis
4. Edema
5. Asbestosis
During a methacholine challenge test, a_______ should be present and
resuscitation equipment should be readily available. Ans✓✓✓physician
During body plethysmography, a pressure transducer measures pressures
at the______ and inside the________ Ans✓✓✓airway; chamber
, During helium dilution test, CO2 is removed by a CO2_________
Ans✓✓✓absorbent
During helium dilution test, helium is diluted until _________ is
reached. This takes about ______ minutes. Ans✓✓✓equilibrium; 7
During helium dilution test, the patient is instructed to breath normally,
and at the end of normal ________ is connected to the sytem.
Ans✓✓✓exhalation
During nitrogen washout test, the patient breaths ______% oxygen to
wash out the nitrogen; nitrogen concentration in the lungs is
approximately_______%. Ans✓✓✓100; 79
During the nitrogen washout test, the _______volume is monitored and
recorded and nitrogen percentages are measured. Ans✓✓✓exhaled
During the V/Q scan, the patient inhales radioactive gas_________ and
hold breath for ______ to______ seconds. Ans✓✓✓xenon; 10-20
seconds
ERV is measured directly by spirometry from a_______ Ans✓✓✓Slow
Vital Capacity
