1CPET vs GXT
CPET is a maximal GXT with respiratory gas analysis performed, gets VO2 max (aerobic capacity)
GXT is a measurement of endurance - can estimate aerobic capacity
2Ischemic threshold
when chest pain starts
3top of THRR should be ___ bpm under ischemic threshold
10 bpm
4what 4 things do we look at from GXT Data
HR response
BP response
EKG
Symptoms
585% of complications occur _____ mins into recovery
5-6
6why are there recovery complications
abrupt cessation decreases venous return
sympathetic activity still present with increased HR
decrease perfusion, decreased SBP, High HR -> increased risk of dysrhythmias
7patients with cardiac diagnoses or cardiac risk factors have a higher risk of __________ after exercises
complications
8post ex changes in HR/BP can indicate
how well the heart/circ system is returning to a resting state
9abnormal or prolonged recovery is linked to
CV issues, inappropriate response to ex, tolerance to ex
10impaired cardiac function
exacerbated by _________
limits hearts ability to _______ ___ ________
exercise
adapt to changes in HR, BP
11impaired parasympathetic activity
______ HR/BP recovery
Increased risk of _______ or post ex _______
delays
arrythmia, hypotension
12inability to adequately maintain BP
exercise increases _________
after stopping exercise _______ persists
vasodilation in skeletal muscles to increase blood flow
vasodilation persists - Cardiac output decrease -> dizziness, syncope
13reduced aerobic capacity + impaired muscle oxygenation
can cause
ischemia -> angina, MI, impaired cardiac recovery
14exercise induced stress on the heart, combined with residual ischemia - what can occur?
ventricular arrythmias, atrial fibrilation, other abnormal rhythms -> heart attack
15Heart rate change per increase in MET
10 bpm per MET
16HR max decreases with
age, meds
17HR should decline _____ beats in the first min or _____ beats by end of second min
12, 22
18failure of HR to decine is associated with increased risk of
mortality in those suspected or diagnosed with IHD
19IHD
ischemic heart disease
20bad HR decine pre disposes pts with known CV to
ventricular dysrhythmias - no one knows why