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Flashcards in Lecture 3 expanded Deck (12):
1

What sources can defecits of oxygen arise from?

O2 uptake, diffusion across alvelar capillary membranes, haemoglobin, Transport of O2 around body, transfer of O2 to tissues

2

Early signs of hypoxia?

Confusion, headache, reduced conciousness, tachy-arrythmias or chest pain

3

Body's initial response to hypoxia?

increased minute ventilation, raised HR

4

What can cause inflammatory proceses in lungs?

inhalation injuries, apsiration/resp infection, secondary to systemic events

5

In a concious patient how is the airway maintained?

muscle tone, gag and swallow reflexes and toungue movement

6

What are the benefits of an LMA?

rapid/easy insertion, more effiecient than facemask, avoids need for laryngoscopy/intubation

7

When is intubation undertaken?

When pts have: reduced level of conciousness, resp failure that requires o2 therapy, +ve pressure support and spewtum removal

8

What is intubation?

Technique of undertaking a laryngoscopy and insertion of a tube using either an oral or nasotracheal approuch

9

What meds does tube insertion require?

sedation, neuromuscular blocker, IV anaethsthetic agent

10

Nursing priorities for intubated pt

tube secure, monitor pt resp parameters (RR, depth, effort, sats, ABG's) prevent removal, suction, hygiene, sedation, positioning

11

What is a tracheostomy?

A surgical opening in the anterior wall of the trachea to facilitate ventilation

12

Indications for tracheostomy?

Upper airway obstruction, resp insufficientcy, laryngectomy, neuromuscular disorders, long term ventilation