[Respiratory] Week 2

Question 1

Respiration

Answer 1

Process by which the body’s cells are supplied with oxygen and carbon dioxide is removed as waste

Question 2

Ventilation

Answer 2

Mechanical movement of airflow to and from the atmosphere and the alveoli

Question 3

Hypoxia

Answer 3

Deficiency of oxygen at the tissue level

Question 4

Hypoxaemia

Answer 4

Deficiency of O2 in arterial blood

also one of the causes of hypoxia

Question 5

Causes of Hypoxia

Answer 5

• Hypoxaemia
• Reduced Cardiac Output (i.e. MI)
• Reduced carrying capacity (e.g. anaemia)
• Reduced blood flow (e.g. shock)
• Reduced extraction from blood (e.g. septic shock)
• Problems with cellular extraction

Question 6

Signs of Hypoxia

Answer 6

• Cyanosis
• Tachypnoea
• Arrhythmias / Bradycardia / Angina
• Peripheral Vasoconstriction
• Restlessness & Confusion
• Coma

Question 7

Hypercapnia Definition

Answer 7

Excess Co2 in arterial blood

Question 8

Respiratory failure is the term for

Answer 8

inadequate gas exchange by the respiratory system which is indicated by a drop in blood oxygen level (hypoxaemia) &/or a rise in arterial carbon dioxide (hypercapnia)

Question 9

If it is ‘ventilation failure’, is it type I or type II respiratory failure

Answer 9

type II

Question 10

If it is ‘oxygenation failure’, is it type I or type II respiratory failure

Answer 10

Type I

Question 11

The type of acute respiratory failure relates to the absence or presence of ________ respectively

Answer 11

hypercapnia