Respiratory

Question 1

Minimum PaO2?

Answer 1

80mmHG

no hypoxia

Question 2

The part of the brain that controls depth and rate of breathing is?

Answer 2

pons

Question 3

The part of the brain that controls inspiration and expiration is?

Answer 3

medulla oblongata

Question 4

Normal SAO2?

Answer 4

95-100%

Question 5

This test is done by injecting radioactive dye into a peripheral vein. The purpose is to measure the integrity of the pulmonary vessels relative to blood flow and to evaluate abnormalties such as PE.

Answer 5

V/Q lung scan

Gallium scan used for t\inflammatin conditions, abscesses, adhesions and tumor location/size

PET used to detect/diagnose cancer

Question 6

Prior to PET scan the patient should avoid what?

Answer 6

stimulants such as coffee, alochol and tobacco

no food or fluids 4 hours before test

Question 7

SIgns of hypoxemia

Answer 7

MENTAL CHANGES:

impaired judgment, agitation , disorientation confusion lethargy

dyspnea

increased bp (body trying to perfuse)

increase HR (trying to increase CO)–>leads to dysrhythmias

cool extremities (O2 going to core)

diaphoresis

Question 8

Symptoms of oxygen toxicity

Answer 8

Substernal discomfort, paresthesias, dyspnea, restlessness, fatigue

Question 9

Purpose of PEEP?

Answer 9

keeps the alveoli open

imagine blowing up a balloon and the effort it takes to START it… that will happen to the alveoli without peep