Mechanical Ventilation Flashcards Preview

CTITICAL CARE > Mechanical Ventilation > Flashcards

Flashcards in Mechanical Ventilation Deck (14):
1

What are signs and symptoms of hypoxia

CEREBRAL- restlessness, anxiety, aggitation,headache, confusion
CARDIAC- tachycardia, dysrhythmias, hypotension, angina
PULMONARY- hypoventilation,dyspnea, yawning, cyanosis ( late sign)
RENAL- decreased urine output

2

Hypoxia

Inadequate amount of oxygen in the tissues

3

Hypoxemia

Inadequate amount of oxygen in the blood.
PAO2 less than 80

4

Hypercapnia

Excessive amount of CO2 in the blood

5

FO2Hg

Oxyhemoglobin

6

FCOHg

Carboxyhemoglobin

7

FMetHg

Metmoglobin ( damaged hgb)
Treatment is methylene blue

8

What's a common problem with leaks

Leaks in circuit are a common problem
The leak is measured and displayed, or should,never be above 30 lpm. A leak of zero means the mask is too tight!
It prevents face damage from occurring

9

IPAP

Inspiratory positive airway pressure

10

EPAP

Expiratory positive airway pressure

11

Which pressure which always be higher, inspiratory or expiratory pressure

Inspiratory pressure

12

What are indications for BIPAP/ CPAP

It's not just for sleep apnea anymore
It's for acute exasperation of COPD
acute hypoxemic respiratory failure
Acute cardiogenic pulmonary edema
When intubation or CPR isn't allowed

13

What is mechanical ventilation

A method of mechanically delivering air and oxygen to the lungs
You can also add Flolan or nitric oxide

14

What's the rationale for mechanical ventilation

Supports cardiopulmonary gas exchange
Increases lung volume
Reduces work of breathing
Reverses hypoxemia and acute respiratory acidosis
Relieves respiratory distress.