Specific Medical Conditions

Question 1

What can improve VC in sitting position for C spine sci?

Answer 1

Abdominal binder

Question 2

Changes in lung volumes in C5 quad for RV, TLC, VC

Answer 2

Increased RV, decrease VC, decrease TLC

Question 3

Rate of loss in VC in normal patients due to aging

Answer 3

Decreases at a rate of 200-250mL/year

Question 4

Position of patient and effect on pulmonary function supine vs sitting in obstructive vs c-spine injury

Answer 4

In obstructive, supine is worse. In c-spine injury, supine is better.

Question 5

Best prognosticator for for noninvasive ventilation in patients with ALS

Answer 5

FVC

Question 6

Why is sitting worse for c-spine sci patients

Answer 6

Abdominal contents sag when sitting due to greater strength of diaphragm relative to weak abdominal muscle walls, which decreases VC and diaphragm motion

Question 7

The normal rate of decrease in FEV1

Answer 7

30cc/year

Question 8

When VC goes below _______, ability to cough is impaired

Answer 8

25mL/kg