CFRN Cardiovascular Emergencies 3

Question 1

A patient transported post-cardiac arrest has return of spontaneous circulation (ROSC). Which targeted temperature management (TTM) goal is currently recommended?

Accepted Answer

Normothermia (36–37.5°C) with strict prevention of fever

Answer

Current evidence supports targeted normothermia (36–37.5°C) with strict fever prevention rather than mandatory hypothermia at 33°C.

Question 2

A patient presents with cardiogenic shock following anterior STEMI. Which hemodynamic profile best characterizes cardiogenic shock?

Accepted Answer

High PCWP, high SVR, low CO

Answer

Cardiogenic shock is characterized by high pulmonary capillary wedge pressure (pulmonary congestion), high systemic vascular resistance (compensatory), and low cardiac output.

Question 3

While transporting a pediatric patient with suspected SVT, the flight nurse performs vagal maneuvers without success. What is the correct first-line pharmacologic treatment?

Accepted Answer

Adenosine 0.1 mg/kg rapid IV push (max 6 mg)

Answer

Adenosine 0.1 mg/kg (max 6 mg first dose) given as a rapid IV push is the first-line drug for pediatric SVT after failed vagal maneuvers.

Question 4

During air transport, a patient with an anterior STEMI develops a new right bundle branch block (RBBB) and left anterior fascicular block. What does this finding indicate?

Accepted Answer

Bifascicular block suggesting high risk for complete heart block

Answer

New RBBB plus left anterior fascicular block (bifascicular block) in the context of STEMI indicates high risk of progression to complete (third-degree) AV block.

Question 5

A patient receiving IV heparin infusion for ACS develops a platelet count drop from 280,000 to 60,000 over 8 days with new arterial thrombus. What condition should the flight nurse suspect?

Accepted Answer

Heparin-induced thrombocytopenia (HIT)

Answer

A 50%+ platelet drop 5–10 days after heparin initiation with new thrombosis is the hallmark presentation of heparin-induced thrombocytopenia (HIT).

CFRN - Certified Flight Registered Nurse Practice Test

CFRN - Certified Flight Registered Nurse Practice Test

CFRN Cardiovascular Emergencies 3