CFRN Shock and Hemodynamic Monitoring

Question 1

A flight nurse is transporting a patient with a mean arterial pressure (MAP) of 55 mmHg, heart rate of 128 bpm, and cold clammy skin. Which type of shock is most consistent with these findings?

Accepted Answer

Hypovolemic shock

Answer

Hypovolemic shock presents with tachycardia, hypotension, and cold/clammy skin due to compensatory vasoconstriction from volume loss.

Question 2

Which hemodynamic profile is most characteristic of cardiogenic shock?

Accepted Answer

High SVR, low CO, high PCWP

Answer

Cardiogenic shock features a failing pump (low CO), compensatory vasoconstriction (high SVR), and fluid backup causing elevated PCWP.

Question 3

A patient's blood pressure is 90/60 mmHg. What is the calculated mean arterial pressure (MAP)?

Accepted Answer

70 mmHg

Answer

MAP = DBP + 1/3(PP) = 60 + 1/3(30) = 60 + 10 = 70 mmHg.

Question 4

A shock index greater than 1.0 in an adult trauma patient indicates:

Accepted Answer

Significant hemodynamic compromise requiring aggressive intervention

Answer

A shock index (HR/SBP) > 1.0 signals significant compromise and predicts the need for massive transfusion or surgical intervention.

Question 5

During transport of a septic patient, the flight nurse notes a central venous pressure (CVP) of 2 mmHg. This finding is most consistent with:

Accepted Answer

Hypovolemia requiring fluid resuscitation

Answer

A CVP below 5 mmHg indicates low right-sided filling pressure, suggesting hypovolemia and the need for fluid resuscitation.

CFRN - Certified Flight Registered Nurse Practice Test

CFRN - Certified Flight Registered Nurse Practice Test

CFRN Shock and Hemodynamic Monitoring