My first I.C.U. rotation

Every day there is something to reflect on after ICU rounds and today it was this: The patient who arrived had aspirated. For a moment we braced for the worst, preparing for bronchoscopy, snares and suction, yet when the scope slid in we found something merciful: the airway was miraculously clear. Still, his breaths remained shallow and ragged, and his heart, agitated by the insult, kept slipping into V-Tach, each episode a violent question to which our answer was the same: shock and shock again. And a stubborn hope that it would be enough. The entire day was extremely chaotic but our attending said the most beautiful thing in the rounds next morning: “the body is far more resilient than we give it credit for.”

Consider the lungs. A normal adult has an FEV1 of approximately 3 to 4 liters. Yet the minimum threshold for donor lungs in transplantation (the bare minimum needed to sustain life) is an FEV1 of just around 1 liter. We walk through our days breathing with nearly four times the capacity we require to survive. Arterial blood leaves the heart nearly 100% saturated with oxygen, yet venous blood returns at 60 to 75% saturation. At rest, we extract only about 25% of the oxygen available to us. 

And when we think of it, the physiology of our body has a number of such examples: Kidneys that keep us alive after losing nearly half their nephrons. Livers regenerate themselves. Bone marrow that increases production tenfold when the body is pushed into crisis. I thought of how skin heals without any instruction manual, how bones knit themselves back into strength after fracture, how muscles atrophy for months and still remember how to rebuild. I thought of how the endocrine system recalibrates after stress, how electrolytes correct themselves, how even arteries reroute blood around blockages. 

And sometimes, the body just is not resilient enough; and everything breaks at once. And in those moments the ICU is no longer the place of victories and incremental recoveries: it becomes a ledger of limits of the human body. When those limits are reached, failure is not a fault; it is the natural conclusion of physiology stretched beyond its threshold. The lesson was

humility: to respect the body’s capabilities, to acknowledge its vulnerabilities, and to recognize that even the best care sometimes meets limits beyond human control.

I stood there, almost frozen, in the middle of the ICU. Around me, the room pulsed with urgency. People running between two critically ill patients, alarms blaring, monitors spitting out numbers faster than I could process or understand. My hands itched to do something, anything, but I didn’t know what. My mind was a jumble of thoughts: Should I be doing something more important to help the situation? Adjusting a line? Checking the vitals? Am I

in the way? Every instinct I had screamed to act, but my training had not yet prepared me for this level of intensity. And I thought, maybe ten years from now, perhaps, I would be standing in the same situation, not as a student, but as the one making the calls, the one whose judgment mattered in that critical space. In that future moment, my mind would inevitably run back to today. And so, I wanted to take all the lessons I could from this day. The lesson is not only scientific but profoundly human. It reminds those who care for critically ill patients that life is both robust and fragile, that survival often hing

es on small margins and that every beat, every breath, every moment of compensation is remarkable. Medicine is not just the act of intervening but it is also the practice of observing, learning, and respecting the extraordinary resilience built into every human being (and accepting, with humility, the moments when even this remarkable resilience is no longer enough.)

As I walked out of the ICU, I thought: maybe resilience is the most silent at the same time, the strongest miracle of human life and maybe that is what medicine is: it is simply the work of witnessing it. Honouring it when it holds. Accepting it when it breaks, and learning from every tremor in between. 

-Dhruvi Joshi