Chapter 11- Airway Management

Question 1

partial pressure

Answer 1

the amount of oxygen dissolved in blood

Question 2

average tidal volume for average adult man

Answer 2

500 mL

Question 3

early signs of hypoxia

Answer 3

restlessness, irritability, apprehension, tachycardia, anxiety

Question 4

late signs of hypoxia

Answer 4

mental status change, thready pulse, cyanosis, dyspnea

Question 5

chemoreceptors

Answer 5

monitor the levels of oxygen, CO2, and pH of CSF and provide feedback to respiratory centers

Question 6

Cheyne- Stokes respirations

Answer 6

irregular respiratory pattern in which the pt breathes with an increasing rate and depth of respirations that is followed by a period of apnea, or a lack of spontaneous breathing, followed by another pattern of increasing rate and depth of respiration

seen in stroke pts and pts with serious head injuries

Question 7

kussmaul respirations

Answer 7

deep, rapid respirations

Question 8

causes of inaccurate pulse oximetry

Answer 8

hypovolemia
severe vasoconstriction
nail polish
dirty fingers
CO poisoning

Question 9

normal end-tidal CO2 levels

Answer 9

35-45 mmHg

Question 10

when is capnometry used? (measure of end-tidal CO2)

Answer 10

To determine proper placement of an advanced airway
Assess a patient’s ventilatory status
Avoid inadvertent hyperventilation of patients with head injuries

Question 11

contraindications for NPA

Answer 11

Severe head injury with blood draining from the nose
History of fractured nasal bone

Question 12

recovery position

Answer 12

on side with one hand above head

Question 13

positive pressure ventilation

Answer 13

when a device forces air into the chest cavity from the external environment