NREMT Paramedic Cognitive ExamCardiology & ResuscitationHard
A 55-year-old male presents with sudden onset of severe, tearing chest pain radiating to his back. He has a history of uncontrolled hypertension. His vital signs are BP 180/100 mmHg (right arm) and 160/90 mmHg (left arm), HR 110 bpm, RR 22 bpm. His skin is pale and clammy. What is the MOST critical immediate management priority for this patient?
- AAdminister nitroglycerin 0.4 mg sublingually
- BAdminister aspirin 325 mg orally
- CControl blood pressure and heart rate
- DRapid transport to a cardiac catheterization lab
Show answer & explanationAnswer & explanation
Correct answer: C. Control blood pressure and heart rate
The patient's presentation (sudden severe tearing pain radiating to the back, differential blood pressures, uncontrolled hypertension) is highly indicative of an acute aortic dissection. The immediate priority in managing aortic dissection is to aggressively control blood pressure and heart rate to reduce shear stress on the aorta and prevent further dissection, aiming for a systolic BP of 100-120 mmHg and HR < 60 bpm.
Why the other options are wrong
- A. Nitroglycerin is generally not the first-line agent for BP control in dissection and can mask other underlying issues; beta-blockers are preferred.
- B. Aspirin is contraindicated in aortic dissection due to increased bleeding risk.
- D. While surgical intervention is ultimately needed, the immediate priority is medical stabilization of BP/HR, and cath lab is for MI, not dissection.
Acute Aortic Dissection Management Priority
The immediate management priority for acute aortic dissection is aggressive control of blood pressure and heart rate to reduce aortic wall stress and prevent further dissection.
- Classic presentation: sudden onset, severe, tearing/ripping pain radiating to back/abdomen.
- Key physical finding: differential blood pressures between limbs or pulse deficits.
- Goal BP: Systolic 100-120 mmHg; Goal HR: < 60 bpm with beta-blockers first.
Memory trick: Dissection Danger: Drop Pressure, Slow Heart, Save the Aorta!