1. The Intensive Care Society state that level 3 patients require a registered nurse to patent ratio of a minimum of ______.

1. 1:2
2. 1:8
3. 1:1
4. 1:6

2. A patient with a pH from their arterial blood gas analysis of below 7.35 is said to be ______.

1. acidotic
2. Alkalotic
3. hypoxaemic
4. neutropenic

3. Nursing a patient in the prone position during mechanical ventilation means they ______.

1. lay on their side
2. lay on their front
3. lay on their back
4. sat up at 45 degree angle

4. Non-invasive ventilation refers to the administration of ventilatory support without using an invasive artificial airway. CPAP is one form and stands for ______.

1. continuous positive airway pressure
2. counterbalance positive airway protection
3. cyclical pressure airway protection
4. critical pressure airway protection

5. Cardiac output (CO) is defined as the amount of blood the heart pumps through the circulatory system in a minute. Which of the following formula can calculate CO?

1. cardiac output = stroke volume × respiration rate
2. cardiac output = left ventricular function × stroke volume
3. cardiac output = stroke volume × heart rate
4. cardiac output = ejection fraction × heart rate