She flipped to the back of the chapter. For Question #47, the letter was circled.
"The antidote," Lena whispered, her hand closing around it. "The antibodies bind the digoxin. It's the only definitive treatment." katzung pharmacology mcqs
Tonight, Question #47 stared back at her. A 68-year-old man with heart failure (EF 35%) on digoxin, furosemide, and lisinopril presents with nausea, vomiting, and yellow-tinged vision. An ECG shows bidirectional ventricular tachycardia. What is the most appropriate next step? A) Administer amiodarone IV B) Increase the furosemide dose C) Administer digoxin immune Fab fragments D) Perform synchronized cardioversion Lena rubbed her eyes. "Yellow vision," she muttered. "Digoxin toxicity. That's classic. But cardioversion for unstable tachycardia?" She flipped back to the autonomic drugs chapter. Nothing made sense. The ceiling light flickered. She thought it was just fatigue, until the words on the page began to warp. She flipped to the back of the chapter
Panic clamped her chest. She was no longer a resident; she was a protagonist trapped inside a multiple-choice exam. "The antibodies bind the digoxin
"Good job, Dr. Sharma. Now turn to Chapter 10: Antiarrhythmics. Question #12 is waiting. – B. Katzung"
Lena's pager buzzed. The screen displayed not a number, but a single, impossible line: KATZUNG Q.47 – TIME LIMIT: 2 MINUTES.
Lena smiled, closed the book, and picked up her pencil. She wasn't drowning anymore. She was just studying.