Emergency Response Procedures Flashcards
7 cards from real ABFAS practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 7 Emergency Response Procedures flashcards as text
A patient undergoing elective bunionectomy with spinal anesthesia develops sudden hypotension (BP 72/40 mmHg) and bradycardia (HR 42 bpm). This presentation is most consistent with:
Answer: High spinal block causing sympathectomy
High spinal block causing a sympathectomy produces hypotension from vasodilation and bradycardia from blockade of cardiac accelerator fibers (T1-T4).
In managing a patient with suspected pulmonary embolism after foot and ankle surgery, which scoring system is commonly used to assess pre-test probability?
Answer: Wells PE Clinical Prediction Rule
The Wells PE Clinical Prediction Rule stratifies patients into low, moderate, and high probability categories to guide the diagnostic workup for pulmonary embolism.
A patient on direct oral anticoagulants (DOACs) for atrial fibrillation requires emergent foot debridement. Which agent reverses the anticoagulant effect of dabigatran?
Answer: Idarucizumab
Idarucizumab (Praxbind) is a monoclonal antibody fragment that specifically and rapidly reverses dabigatran anticoagulation.
Following a calcaneal fracture repair, a patient develops signs of fat embolism syndrome including petechiae, hypoxia, and confusion. The petechiae are characteristically located in which area?
Answer: Upper chest, axillae, conjunctivae, and oral mucosa
Fat embolism syndrome classically causes petechiae in the upper thorax, axillae, conjunctivae, and oral mucosa due to capillary occlusion in these non-dependent regions.
A patient with no known drug allergies develops intraoperative bronchospasm, urticaria, and hypotension after receiving IV cefazolin. After epinephrine administration, which medication should be given next?
Answer: IV diphenhydramine 25-50 mg and IV corticosteroids
After epinephrine, IV diphenhydramine (H1 blocker) and corticosteroids are given as secondary treatment for anaphylaxis to block histamine effects and reduce biphasic reaction risk.
A patient with Type 2 diabetes on metformin is scheduled for an elective procedure requiring IV contrast. Metformin should be held postoperatively because of the risk of:
Answer: Lactic acidosis if contrast-induced nephropathy occurs
Metformin is held because contrast-induced nephropathy can reduce its renal clearance, leading to accumulation and potentially fatal lactic acidosis.
In a surgical patient who develops intraoperative cardiac arrest, the recommended compression-to-ventilation ratio for a single rescuer performing CPR is:
Answer: 30:2
Current AHA guidelines recommend a 30:2 compression-to-ventilation ratio for single-rescuer CPR to maximize chest compression fraction.