CFRN Review EXAM QUESTIONS AND

CFRN Review EXAM QUESTIONS AND ANSWERS 100% SOLVED (Newest 2025)

Applied gas laws: bends, staggers, chokes, creeps.

Decompression sickness (DCS) - Correct Answers ✅Henry's law. Most common DCS are the bends- shoulder and joint pain. Staggers= brain/cns, chokes= resp, creeps= skin.AGE - Correct Answers ✅Atrial Gas Emboli- VQ mismatch, position on L site to help trap air in the apex of the ventricle and prevent it from reaching the ling circulation. Admin 100% O2

Applied gas Laws: cellular gas exchange, diffusion - Correct

Answers ✅Graham's law Death from crush injury due to? Complications of crush injury? - Correct Answers ✅Death due to reperfusion

injury, rhabdo, rf. complications: DIC, compartment

syndrome, rf, hyperk Compartment syndrome- fasciotomy - Correct Answers ✅Fasciotomy required if pressures exceed 35 mmhg and must be performed within 6 hrs of injury Atrial waveform waves - Correct Answers ✅A waves= rise in atrial pressure as a result of atrial contraction C waves= not always visible on the tracing, rise in atrial pressure with closure of the AV valves (tricuspid and mitral) 1 / 3

CFRN Review EXAM QUESTIONS AND ANSWERS 100% SOLVED (Newest 2025) V wave= rise in atrial pressure as it refills during ventricular contractions Normal cvp, co, ci, pa systolic/diastolic, wedge (pawp, pcwp), svr - Correct Answers ✅Normal cvp=2-6 co= sv x hr (4-8l/min) Ci = 2.5-4.3 Pas/pad= 15-25/8-15 Pawp 8-12 Svr= 800-1200 dynes/sec/cm5

Ballistics and firearms - Correct Answers ✅Low energy: ice

picks, knives

Medium energy: handguns

High energy: hunting rifles (cause most severe tissue damage

cavitation)

Tumbling, yaw - Correct Answers ✅Tumbling: rotation on

360 degree axis (greater tissue damage)

Yaw: deviation up to 90 degrees from straight path

Camts 1.Med director not req to...

2.Intubation req 2 / 3

CFRN Review EXAM QUESTIONS AND ANSWERS 100% SOLVED (Newest 2025) 3.Live intubation req during training 4.Specialty team response time - Correct Answers ✅1. Live in the same state

• Quarterly
• 5
• 45 min

Applied gas laws: bp cuff, ett cuff, mast pressure and volume

• Correct Answers ✅Boyles law. Iabp purges w

ascent/descent Camts

• Pilot area orientation day/night
• Helipad required to have
• Fixes wing twin engine time
• Ambulance fuel requirement
• elt set off at
• Uniform fit - Correct Answers ✅1. 5hrs day /2hrs night
• 2 paths, security, wind direction indicator, perimeter

lighting

• 500 hrs
• 175 miles
• 4Gs
• 1/4 in fm body
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