Patient Care and Safety in the Catheterization Laboratory
Safety content blends patient preparation, monitoring, pharmacology, and radiation protection. You must understand pre-procedure assessment (allergies, renal function, anticoagulation, informed consent), sedation and airway management, and continuous monitoring of ECG, blood pressure, and oxygen saturation. Know contrast-induced nephropathy prevention (hydration, minimizing volume), the signs and management of anaphylactoid contrast reactions, and anticoagulation strategies including heparin dosing and ACT monitoring. Vascular access complications - hematoma, pseudoaneurysm, retroperitoneal bleed - and their recognition are high-yield.
Radiation safety is tested heavily: ALARA principles, time-distance-shielding, personal dosimeters, lead aprons, and the inverse-square law. Traps include confusing the dosimeter badge with a patient dose metric, forgetting that distance is the most effective dose reducer, and overlooking sterile technique breaches. Also expect questions on emergency response: vasovagal syncope, cardiac arrest, and equipment checks.
Rule of thumb: double the distance from the source and dose falls to one quarter (inverse-square). Worked example: moving from 50 cm to 100 cm reduces exposure to 25% of the original. Prioritize patient comfort and monitoring while maintaining strict radiation and infection-control discipline - questions often reward the safest, not the fastest, action.