AORN Periop 101 Final Exam

AORN Periop 101 Final Exam (Latest Update 2025 / 2026) Questions & Answers | Grade A | 100% Correct

Question:

An OR fire can occur when all elements of the fire triangle are present:

Answer:

• An ignition source (electrosurgical pencil)

• Fuel (flammable preoperative skin antiseptic products, surgical drapes)

• An oxidizer (oxygen)

[perform a fire risk assessment before starting surgery]

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Question:

Life Safety Events include:

Answer:

• Fire in the OR • Malignant hyperthermia (MH) crisis • Local anesthesia systemic toxicity (LAST) • Cardiac arrest • Latex allergy

Question:

How is LAST treated?Max recommended dose?

Answer:

• 20% lipid emulsion at a dose of 1.5ml/kg (lean body mass) over 1 min,

followed by infusion of 0.25 ml/kg/min.

• Repeat bolus up to 2 more times
• Continue infusion for 10 minutes after achieving hemodynamic stability
• Max dose 10ml/kg in the first 30 minutes

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Question:

What are the signs and symptoms of an MH crisis:

Answer:

• increased heart rate

~ cardiac arrest

• muscle rigidity

~ increased metabolism and muscle breakdown and increased acid content in blood

• fever exceeding 110F

~ brain damage

• Death due to secondary cardio collapse

Question:

What is the medication used to treat MH: How is it prepared:

Answer:

Dantrolene Sodium

• Usual loading dosage 2.5 mg/kg IV
• 20 mg per vial mix with 60 ml sterile water

Ryanodex

• 250 mg per vial mixed with 5 ml sterile water

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Question:

What are signs and symptoms of LAST:

Answer:

• Metallic taste
• perioral numbness
• auditory changes (tinnitus)
• agitation
• dizziness
• diplopia
• dysarthria (slurred speech)
• shivering
• tremors
• delirium
• syncope
• seizures
• coma
• tachycardia/HTN (initially)
• bradycardia/hypoHTN (increased toxicity)
• ventricular arrthymias
• asystole
• respiratory arrest

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