Exercise Respiratory Pt Flashcards
what is normal static lung volume (vital capacity)?
80-120% of predicted FEV1
how is FEV1 predicted?
age, gender, race, height
an estimated FEV1 of <80% indicates a _____ lung disease
restrictive
an estimated FEV1 of >120% indicates a _____ lung disease
obstructive
mild lung disease:
FEV1 = ____
FEV1/FVC = _____
FEV1 = <80% (restrictive)
FEV1/FVC = <70%
which category of lung disease severity will have exercises similar to normal, healthy individuals?
mild lung disease
moderate lung disease:
FEV1 = ____
_____ at rest
FEV1 = <80%
Hypoxemia at rest
what should be used to measure exercise tolerance for patients on respiratory meds?
RPE (HR is not accurate)
what limits exercise tolerance for moderate lung disease patients?
abnormal ventilatory responses
little ventilatory reserve
SOB with mild activity
is the issue with restrictive lung disease patients with volume or flow?
volume
severe lung disease:
FEV1 = ____
CO2 _____
_____ ventricular dysfunction
FEV1 = <50%
CO2 increased
Right ventricular dysfunction
–> Pulmonary arterial HTN
what are the systems that limit physical activity?
muscular
cardiac
respiratory
signs of intolerance to exercise of pulm pt
poor oxygenation
retain secretions
cyanosis
what causes ventilatory pump dysfunction?
respiratory mm fatigue or weak diaphragm
types of ventilatory pump dysfunction
mechanical
muscle
control
characteristics of ventilatory pump dysfunction
- accessory muscle use
- coastal retraction: use intercostals in excess
- increased SOB w/ exercise
- cyanosis with exercise
SpO2 goal for ventilatory pump dysfunction
at least between 88-92% (w/o suppression of CNS respiratory drive)
mechanical pump failure is associated with ___ lung disease
obstructive
what causes control pump failure?
CNS issue - chemoreceptors and respiratory centers (medulla)
what is a Hoover’s sign?
paradoxical breathing:
- abdomen goes in on inhale
- abdomen moves out and rib in on inhale
what is a flail segment?
3 or more ribs fractured
swing door effect when inhale
can puncture lung
phrenic nerve damage causes
ventilatory pump failure
pulmonary HTN:
MAP = ____ at rest
MAP = ____ during exercise
MAP = >20 mmHg at rest
MAP = >30 mmHg during exercise
what diagnoses will have pulmonary HTN?
COPD
cor pulmonale
pulmonary fibrosis
group 1 pulmonary HTN
idiopathic
group 2 pulmonary HTN
L heart failure
(can eventually lead to R)
group 3 pulmonary HTN
lung disease
ex: COPD, restrictive
group 4 pulmonary HTN
pulmonary emboli
(damage lungs and/or R ventricle)
group 5 pulmonary HTN
unclear mechanisms
type ___ muscle fibers are lost with respiratory diseases
type I
exercises for COPD emphysema
scapular retraction
strengthen LE
60-70% 1RM
