DCAS Pre-Hospital Emergency Care 3

Question 1

The revised trauma score (RTS) uses which three physiological parameters?

Accepted Answer

Glasgow Coma Scale, systolic blood pressure, and respiratory rate

Answer

The RTS combines coded values of GCS, systolic BP, and respiratory rate to produce a physiological score used for triage and predicting survival probability in trauma patients.

Question 2

Which haemorrhage control technique is appropriate for a suspected pelvic fracture with haemodynamic instability?

Accepted Answer

Pelvic binder application to reduce pelvic volume and tamponade haemorrhage

Answer

A pelvic binder closes the pelvic ring, reducing the potential space for haemorrhage and providing tamponade effect to control life-threatening internal bleeding from pelvic fractures.

Question 3

The 'permissive hypotension' strategy in penetrating trauma without head injury aims to maintain systolic BP at:

Accepted Answer

80-90 mmHg

Answer

In penetrating trauma without TBI, permissive hypotension targets SBP 80-90 mmHg to maintain perfusion of vital organs while avoiding the dilution of clotting factors and clot disruption that aggressive fluid resuscitation causes.

Question 4

Rapid Sequence Intubation (RSI) involves:

Accepted Answer

Simultaneous administration of an induction agent and neuromuscular blocking agent to facilitate intubation

Answer

RSI uses concurrent administration of an induction agent (e.g., ketamine, etomidate) and succinylcholine or rocuronium to rapidly achieve unconsciousness and paralysis, creating optimal intubation conditions while minimising aspiration risk.

Question 5

Which is the most reliable indicator of adequate ventilation in the intubated patient?

Accepted Answer

Waveform capnography (ETCO2 35-45 mmHg)

Answer

Waveform capnography with a normal ETCO2 (35-45 mmHg) confirms tube placement, monitors ventilation continuously, and detects complications such as oesophageal intubation, hyperventilation, or cardiac arrest.

DCAS Practice Test

DCAS Practice Test

DCAS Pre-Hospital Emergency Care 3