I came into my ICU rotation feeling like critical care is the opposite of primary care and what I want to do, but open to enjoying the experience. I knew I’d enjoy parts of it and learning the medicine and challenging myself with things that scare me. But I was surprised by how much I loved it. Intensive really is the most appropriate word for it, and I feel really lucky to have had such a uniquely intense experience.
There are so many things that make the ICU very different from everything else in medicine.
First, I’m struck by how close you become to people who you often never get to know. If people get better, and are able to interact more, we quickly transfer them out of the unit to make room for sicker patients and reserve our energy and space for the acutely ill. But you get to know the idiosyncrasies of their bodies—how they respond to changes in their respirations, how different medications improve their blood pressure, how their delirium develops in response to their environments. As we poured long days and weeks into thinking about how to care for people’s bodies minute to minute, our team grew close to people whose voices we never heard.
Second, there is more death, obviously. I’ve never had so many breaking bad news conversations. I won’t forget what it’s like to explain the unlikely recovery of a thirty year old man to a room full of his family, or to call a woman in the middle of the night to tell her what she already suspects when someone calls you at one in the morning. It was deeply rewarding to learn more deeply how to speak to people about such extreme illness and to understand their responses, which can often be harsh, and almost always heartbreaking. This was the first time I’d been a part of terminal extubations, something I never gave thought to when entering medicine. And that’s thing about this career. People talk a lot about how we idealize this field, and it’s true that a lot of the day to day work is not what most people would imagine. But there is an incredible amount that is so much more powerful than I ever anticipated.
The medicine is extremely complex, and interesting. I find acute respiratory distress syndrome (ARDS), where your lungs are flooded with inflammation, really interesting-- in that an illness in one part of your body can then trigger such a dramatic and life-threatening response from your lungs, even when your initial illness had nothing to do with your lungs. In medical school I struggled most with understanding the physiology of the lungs; it never came very intuitively and I had a lot of trouble visualizing the organ. Now I have a much better sense of how they work, how amazing and resilient and sensitive they are, and I really value having better understanding of what it is that enables us to breathe.
Another thing I loved about the medicine was trying to piece together stories of each person’s sickness. Very often, our patients came to us unresponsive and unable to tell us anything about how they’d been feeling up to that point, and very often we’d unearth things about them that they themselves didn’t know. A woman with unexplained low blood pressure, in whom we discovered widely metastatic cancer, we guessed from images of her heart, her need for oxygen, and her newly diagnosed cancer that she was suffering from large clots in her lung even though we weren’t able to see them. In another young man whose heart stopped inexplicably, we used his medical history, laboratory findings, and an exam of his stomach to learn that he likely used pain medications to treat the pain of an inflamed pancreas, causing his breathing to slow, aspirate contents into his lungs, causing less oxygen to reach his heart and a cardiac arrest. With the sudden collapse of a very young woman, I learned from toxicology that this was a common presentation of GHB overdose—a drug used for highs and also for date rape because it causes unresponsiveness without a change in your heart rate or blood pressure. I learned so much medicine as a result of trying to make diagnoses, as well as trying to manage the diseases: how severe an illness pancreatitis can be and how important early aggressive hydration is, how to use measurements of blood pressure to determine whether giving a person fluid will help them, how to evaluate whether an intubated patient has developed a pneumonia when they can’t tell you anything about their symptoms, how to predict whether an intubated person will be able to breathe on their own without the tube. I also loved how quickly we could gather information and learn in the ICU, because tests happen quickly, blood can be drawn at any time, vitals are monitored constantly.
One very concrete thing in the ICU that was different from other rotations is the fear it instilled in me, mainly fear of 1) procedures, and 2) emergency situations like codes. I’m happy to say that I’m not that scared of either of these anymore, which I really didn’t think would be the case. I’m not the best at either of these, but I feel at the very least competent. I did a lot of lumbar punctures, arterial lines, and central lines. I’m confident that I can place a central line (a catheter into the internal jugular vein, or femoral vein as I had the opportunity to do once), by myself, and because of that I’m not as worried about being on call overnight alone anymore. And as someone who isn’t very procedure oriented, I’m surprised by how much I enjoy having this skill. Likewise, I was surprised by how much I appreciated codes—situations where a patient has lost a pulse, or having unstable blood pressure/heart rate. I was part of one, and had to be the leader for another. The one that I mostly observed was a classic case (ventricular fibrillation, a deadly heart rhythm) with a defined algorithm, but complicated by its length and the difficulty in when to stop trying to resuscitate the patient. Amazingly, at the very moment when the decision was made to stop after another round of CPR and we stopped that round of CPR to check the patient’s pulse, it had returned. It amazes me on so many levels: 1) that after half an hour of being essentially dead, that a person could return to life; 2) we have the power to do that; 3) how tenuous and arbitrary the boundary is between living and dying, such that it comes down to an individual person’s evaluation of when to stop trying to resuscitate, and how if we’d given up (very reasonably) one minute earlier, things would be so different.
The other code, which I had to lead, was not as straightforward and I was so fazed by the suddenness of everything that it was hard to remember and think of everything I needed to. But I learned so much from just a few minutes of events, and now will likely never forget how to evaluate for causes of asystole (flatline, when your heart basically stops) and how to quickly manage it. I had a lot of help and played a small role in this, but nonetheless it feels good to be part of reviving a person. I still know that emergencies aren’t my style, but I also realized that often we think we dislike something that is inherently enjoyable because we’re scared of it, or aren’t naturally good at it. In this case, I think most people could enjoy the quick critical thinking and immediate cause-and-effect nature of codes.
And so that’s how a month whose beginning I dreaded became an experience whose end is bittersweet.
