“Explain the exact cellular pathway and mechanism of action for a beta-1 adrenergic receptor antagonist in the context of a pediatric patient experiencing tachycardia,” she commanded, her voice sharp and completely serious.
My brain completely blanked for a fraction of a second, paralyzed by fear. But then the thousands of hours I had spent studying in the freezing back of the ambulance kicked in. The adrenaline forced my mind into total focus. I took a deep breath and recited the pathway flawlessly. I detailed the competitive binding, the reduction in intracellular cyclic AMP, the decrease in calcium ion influx, and the ultimate negative chronotropic effect on the heart muscle. I spoke for two full minutes without stopping, my voice growing steadier with every single word. When I finished, the small break room was completely silent. I waited for her to tell me to pack up my things and get out of her hospital. Instead, the absolute faintest hint of a smile touched the corner of her mouth. She looked me up and down, taking in my heavy boots, my dark under-eye circles, and my oversized uniform.
“Why is a second-year medical student working a full-time overnight ambulance shift?” she asked.
“Because I have to pay my own way,” I answered honestly. I did not whine. I did not complain about my parents or my sister. I simply stated the facts. “I do not have a co-signer for federal loans, so I took out high-interest private loans for tuition. The ambulance job pays my rent and buys my textbooks.”
Dr. Pierce stared at me for a long, calculating moment. She nodded once, a sharp, decisive movement.
“Come to my office on the seventh floor at exactly 3:00 this afternoon, Evans. Do not be late.”
Then she turned around and walked out of the break room, leaving me standing there completely stunned. I took my pharmacology exam later that morning and scored a 98%. At exactly two minutes to 3:00, having changed out of my EMT uniform and into professional clothes, I knocked on the heavy wooden door of the head of pediatric surgery. Dr. Pierce told me to enter. She was sitting behind a massive glass desk surrounded by medical awards and framed research publications. She motioned for me to sit down.
“I pulled your academic file this morning, Clara,” she began, folding her hands on her desk. “You are currently ranked third in your class. Your professors say you are brilliant, but completely alienated from your peers because you are always working. Your clinical scores are flawless, but you are physically deteriorating. I can see the exhaustion in your eyes. If you keep working overnight shifts on an ambulance, you are going to burn out before you ever reach a surgical residency. And that would be a massive waste of your talent.”
I looked down at my hands.
“I know,” I whispered, “but I do not have a choice.”
