Exercise Stress testing

Question 1

pH of exercising muscle

Answer 1

7.00

Question 1

point at which aerobic metabolism ceases and anaerobic metabolism begins

Answer 1

15-20mmHg PaO2

Question 2

primary buffer for H ions

Answer 2

bicarb

Question 3

normal resting PaO2 of resting tissue

Answer 3

100mmHg

Question 4

indications CPET

Answer 4

unexplained dypsnea

undiagnosed exercise intolerance

suitability for heart/lung transplant

pre-op eval

disability info

prognosis in heart failure

Question 5

point of critical capillary PaO2 for a given tissue

Answer 5

anaerobic threshold

Question 7

RER =

Answer 7

respiratory exchange ratio = measurement of RQ at atmospheric level (vs tissue level)

Question 8

VAT =

Answer 8

point at which lines explaining VCO2 as a function of VO2 intersect

Question 9

RQ=

Answer 9

respiratory quotient - ratio of rate of CO2 prodction to oxygen consumption