CBR Lab - Physiologic Parameters Flashcards
function of CV system
deliver O2, nutrients via blood and remove CO2 and waste
linkes external respi and cellular respi
transports heat, WBC and hormones
function of pulmonary system
exchange O2 and COW bet tissues, blood and environment
first line of defense for O2 and CO2 homeostasis
maintains acid-base balance
temp homeostasis via evaporative heat loss
normal BP
systolic: less than 120
and
diastolic: less than 80
elevated BP
systolic: 120-129
and
diastolic: less than 80
high BP - HTN stage 1
systolic: 130-139
or
diastolic: 80-89
high BP - HTN stage 2
systolic: 140 or higher
or
diastolic: 90 or higher
HTN crisis
systolic: higher than 180
or
diastolic: higher than 120
discuss BP increase
normally inc by exercise in curvilinear fashion relative to intensity
inc in BP is more in systolic
HRE - abnormal rise in systolic during exercise
discuss orthostatic hypotension
reduction of systolic and diastolic BP upon standing
CV impaired: unable to produce peripheral vascular constriction to inc venous return
stages of valsalva maneuver
1: initial inc in BP
2: BP drops to stable p peak
3: slight dec in BP
4: inc diastolic fillng = inc SV and BP
abnormal response of valsalva manuever
initial inc in stage 1 remains and wala dec on stage 2-3
babalik to pre-valsalva BP p valsalva maneuver
discuss normal ECG
normal sinus rhythm
P wave morphology remains constant sa diff leads
P-P and R-R intervals are equal
atrial and ventricular rates are identical bet 60 and 100 bpm
no ectopic activity
what initiates pacemaker activity
SA node
discuss temperature during exercise
20% of energy used for muscle contraction
80% converted to heat = inc in temp
heat is distrubuted by CV = inc in temp
normal RR in adults
12-20 cpm
RR during exercise
should feel out of breath not SOB
what is SpO2
peripheral capillary O2 saturation - surrogate for arterial sat
what decreases SpO2 accuracy
hypoxemia
hemodynamically compromised
critically ill
normal SpO2 in adults
94-100% in RA
abnormal SpO2 during exercsie
dec of >4%
causes of hypoxemia during exercise
VQ mismatch, diffusion deficit, R-L shunting, alveolar hypoventilation
what warrants supp O2 during exercise
COPD or other pulmonary conditions
borg’s RPE
measures intensity of exercise
from 6-20
borg;s RPE for aerobic training zone
12-14
modified borg’s RPE
more specifically record symptomatic breathlessness
