DHA Emergency Medical Services 4

Question 1

A patient in anaphylactic shock has received epinephrine but remains hypotensive after 5 minutes. What is the next most appropriate intervention?

Accepted Answer

Administer a second dose of epinephrine IM

Answer

A repeat dose of epinephrine IM can be given every 5-15 minutes if the patient remains symptomatic or hemodynamically unstable.

Question 2

During a mass casualty incident (MCI), a patient tagged BLACK under START triage is found to have a weak carotid pulse. What should the EMS provider do?

Accepted Answer

Reassess and retag as RED only if resources allow

Answer

In MCI, black tags indicate expectant or deceased; upgrades are appropriate during secondary triage only when resources become available.

Question 3

Which ECG finding is MOST consistent with a right ventricular myocardial infarction?

Accepted Answer

ST elevation in leads II, III, and aVF with ST elevation in V4R

Answer

Right ventricular MI classically presents with inferior ST elevation plus ST elevation in right-sided lead V4R.

Question 4

A 4-year-old child weighing 18 kg requires IO access. What is the preferred initial IO site in pediatric patients?

Accepted Answer

Proximal tibia (anteromedial surface)

Answer

The proximal tibia anteromedial surface is the preferred primary IO site in pediatric patients due to accessibility and low complication rates.

Question 5

When managing a suspected tension pneumothorax in the pre-hospital setting, needle decompression should be performed at which landmark?

Accepted Answer

2nd intercostal space, midclavicular line, superior border of the 3rd rib

Answer

Needle decompression is performed at the 2nd ICS midclavicular line, inserting above the 3rd rib to avoid the neurovascular bundle.

DHA - Dubai Health Authority Practice Test

DHA - Dubai Health Authority Practice Test

DHA Emergency Medical Services 4