Cardiopulmonary Exercise Testing Flashcards
What is anaerobic threshold?
highest exercise intensity that you can sustain for a prolonged period without lactate substantially building up in your blood.
What is a borg scale?
way of measuring physical activity intensity level
(refer to table)
What is Carbon dioxide production (VCO2)?
A tool to calculate resting energy expenditure (REE) in mechanically ventilated critically ill patients
What is Oxygen consumption (VO2)?
measurement of the volume of oxygen that is used by your body to convert the energy from the food you eat into ATP
What is Metabolic equivalents (METs) and MET equivalency?
the amount of oxygen consumed while sitting at rest
equal to 3.5 ml O2/kg
MET = body weight x min
What is minute ventilation?
It is the measurement of the amount of air that enters the lungs per minute
What is O2 prescription?
supplemental oxygen?
(search if time)
What is O2 pulse?
the ratio of oxygen consumption to heart rate & expresses the volume of oxygen ejected from the ventricles
What is progressive multistage exercise tests?
examines the effects of increasing workloads on various
cardiopulmonary variables, without necessarily allowing a steady state to be achieved (VO2 Max)
What are progressive multistage exercise tests?
they examine the effects of increasing workloads on various
cardiopulmonary variables, without necessarily allowing a steady state to be achieved (VO2 Max)
What is a ramp test?
Ride as close as possible to the target power for as long as you can, until the point at which you can no longer sustain the effort
What are the ratings of perceived exertion (RPE)?
Borg scale- measuring physical activity intensity level
What is the six-minute walk test?
walk at your normal pace for six minutes, and its used to monitor your response to threatens for heart, lung and other health problems
What is a graded exercise test (GXT)?
most widely used assessment to examine the dynamic relationship between exercise and integrated physiological systems?
What is Submaximal and maximal performance testing?
used to predict aerobic capacity or to assess the ability
to perform a standardized exercise or task
What is an S-T segment depression on an ECG signify?
Indicates that a person has an underlying condition that affects the heart. The condition may be relatively benign or life threatening. Causes could be hypokalemia, cardiac
ischemia, and medications.
What is Bruce’s treadmill protocol?
commonly used treadmill exercise stress test.
developed as a clinical test to evaluate pts with suspected coronary heart disease, though it can also be used to estimate cardiovascular fitness
What is a steady-state test?
the condition of a system or physiological function that remains relatively constant.
ex: after a few minutes of submaximal exercise, the person reaches a state where the HR and O2 tend to remain constant.
What are the ventilatory equivalent for CO2 and O2?
Ventilatory equivalent for CO2 (VE/VCO2)
Ventilatory equivalent for O2 (VE/VO2)
What is the ventilatory threshold?
O2 uptake (VO2) immediately below the VO2 at which pulmonary ventilation (VE) increases disproportionately relative to VO2
What is watts, work and workload?
- Watts: unit of power
- Work: activity involving mental effort done in order to achieve a result
- Workload: the demands that disease imposes on the respiratory muscles
How do you select the appropriate exercise protocol (ET VS. CPET) based on the reason for performing the test?
ET: treadmill or bicycle ergometer
CPET: Subtype of ET assessing cardiorespiratory function (CRF) with measurement of ventilatory gasses during exercise (now easier to conduct)
What are the normal/abnormal HR & BP in adults?
*refer to table
How to measure HR during exercise?
● Normally palpated with the carotid artery during exercise
● Utilize heart rate monitors
● Can be measured by EKG using a heart rate ruler.
300 / # large squares between R waves
