Thursday, February 14, 2013

It's a Bird! It's a Plane! No, it's...Super Medical Student!

Over the past four months or so, my friends and I have been jetsetting and roadtripping across the country. Lest you think we're traveling for fun, we're actually desperate to convince various training programs that they would be PERFECT for us, and we would be PERFECT for them. It's a rough process.

Part of the reason it's rough is that you have to get to know your interviewer and they have to get to know you in a very short amount of time, sometimes as little as seven minutes. Therefore, their questions and your answers become extremely (and stressfully) important. Some questions are pretty straightforward, and some really throw you for a loop. The next few blog posts will be a series on some of the questions I was asked during interviews and how I responded to them (or should have responded to them).

Today's question: "Tell me about a time you went above and beyond for a patient."


I felt like this was a pretty tricky question. As a medical student, it's hard to determine from rotation to rotation what level of performance is expected. On one rotation, the perception may be that if you're not following five patients, why are you even here. On another rotation, that same number of patients may be seen as exceptional work, and wow this student is really together to manage so many patients! This can even vary on the same service, depending on who your attending, or head doctor, is.

So what would this interviewer consider "above and beyond"? At first I thought about when I had spent hours of my own time researching what could possibly be wrong with a confusing patient. But what amount of time would have met the criteria of going above and beyond without making it seem like I was inefficient at developing a differential diagnosis? I quickly scrapped that idea. The time I called three different hospitals to obtain medical records on one of our patients? Or would he think that is simply the medical student's job, and view me as a complainer for thinking that was a big deal?

Ultimately I settled on the time that I wrote out every single one of my patient's 22 medications, what they were for, and common side effects or pitfalls to watch for when taking those medications. I then spent an hour going through the list with her and just talking about what she had been going through. My interviewer seemed satisfied with that (though is it really possible to know?) and we moved on.

But it got me thinking. All these examples that I thought of were only possible because I was the medical student. I had the time to spend hours reading outside of the hospital because I wasn't stuck doing paperwork. I had the time to call three different hospitals because I wasn't trying to schedule two CT scans and an MRI. I had the time to write out my patient's medications because I didn't have six other patients to take care of.

If I ever end up in the hospital, I totally want a medical student involved in my care. They are the ones with the time to read up on what's wrong with you, they are the ones who are taking care of fewer patients and can give more time to each of them, they are the ones who aren't yet jaded by years in medicine and might care a little more about the humanity of their patients. It's something I hope I'll never lose, but at the same time I know next year that can't be me spending hours to go through a patient's medications with them. I simply won't have the time.

There are plenty of things I will not miss about being a medical student: all of my work being completely redundant, arbitrary grading processes, impromptu evidence-based medicine presentations, waiting for someone to sign my order for IV fluids, twiddling your thumbs for three hours at the hospital because there's nothing to do but no one has let you go. But I will miss having so much time to spend with my patients. I've learned a lot about building patient relationships during my time as a student. Now all I have to do is learn how to build that same relationship in a tenth of the time.

For those medical students out there, what will you miss (or not!) about being a student? For non-medical students, what would you consider "going above and beyond" for your care if you were in the hospital? For everyone, would you want a medical student involved in your care?

Friday, January 25, 2013

Does this index make me look fat?

Weight is a funny thing. It seems that experts can never agree on what constitutes the "right" weight. Should we eat a low calorie diet and be a little underweight? Should we be a little overweight? Who decides what is overweight or underweight anyway? One of the sticking points in these conversations is the Body Mass Index, more commonly known as BMI.

I recently told a friend that I was trying to reach a healthy BMI. He immediately went off on how BMI is a scheme concocted by capitalism and physicians to scare the American populace into losing weight, and how I should not even try to reach a healthy BMI because I might kill myself in the process. Now, I don't put much stock in such an extreme reaction, especially since this same person told me I couldn't be "serious" about losing weight without restricting my exercise to only cardio and cutting out certain "bad" foods. I'm certainly trying to exercise and eat healthier for better reasons than to reach a number on a scale. But it did get me wondering: how good of a goal is a healthy BMI?

BMI is a measurement calculated by taking a weight (in kilograms) and dividing it by a height (in meters) squared. It was originally designed in the mid-1800s, and first started to be used as a proxy for body fat percentage in the 1970s. Despite warning that BMI should only be used on a population level and not to determine any one individual's health, it is currently used by insurance companies and physicians as a diagnostic tool for personal obesity. In the average person, BMI can aid physicians in determining who may be at increased risk. Anything below 18.5 is considered underweight, while 18.5 to 24.9 is considered normal. 25 to 29.9 makes you overweight, and anything over 30 enters you into the "obese" categories.


The problem with BMI is that it cannot distinguish between fat and lean body mass. This means that it fails to mark some people as obese who have excess body fat, while it marks some people (like athletes) as obese who clearly do not have excess body fat. It also fails to adjust for the extremes of height, which gives taller people a deceptively high BMI and shorter people a deceptively low BMI. At least one physician has altered the formula to correct for this, and you can view the comparison between the two here.

So if BMI is so flawed, how can we use it? A study conducted in 2007 looked at the relationship between BMI and body fat percentage in college students: males and females, athletes and nonathletes. They suggested altering the cutoffs for what should be "overweight" and "obese" based on the population being examined. For example, if you're a female athlete, your cutoff for overweight should be 27.7, but if you're a female nonathlete your cutoff should be 24.0. Linebackers shouldn't be considered overweight until they reach above 34.1. Clearly, there's a lot of wiggle room.

Why not just measure body fat? Measuring body fat percentage directly is a real chore, requiring an individual to wear special clothing and be submerged in a water or gas chamber with trained personnel at special sites. Slightly more intensive than hopping on a scale and backing up against a wall. Even the body fat percentage calculated by electrical currents or measurements with skin calipers can be way off if performed by inexperienced people or on someone with significant obesity.


But there are other measures that can add good information to BMI. For example, waist-to-hip ratio is a good indicator of how much fat a person stores in the belly. Where you store your fat is just as important as how much of it you have. More fat around the abdomen (i.e., a higher waist-to-hip ratio) is associated with poorer health outcomes than more fat around the hips or thighs. Your level of cardiovascular fitness is also important, like the fastest possible speed you can run on a treadmill.

So my original question: how good of a goal is a healthy BMI? I think no one would argue that I am an athlete, and I'm smack dab in the middle of the curve as far as height. So none of the pitfalls of using BMI apply to me, and I can trust that my BMI correlates with my body fat percentage fairly well. If anything I should aim a little lower than the upper end of "normal" given the 2007 study. For me, at least, BMI is a good measure of progress in my attempt to get healthier, in addition to waist-to-hip ratio and cardiovascular fitness.

What do you think about using BMI? Is it fair for physicians to calculate BMI and potentially base treatment decisions on it? Should we be required to obtain other complementary information to get a more complete picture of a patient's obesity status?

Monday, January 14, 2013

Fancy seeing you again!

I've been away from the blog for a while. First there were away rotations to make a good impression on, then a giant test to study for, then applications to submit, then interviews to attend. The thing about medicine is there's always something that makes you "really busy", something coming up that you can use as an excuse not to do something. The trick is going to be finding a way to do the things that are important to me anyway. And, despite my small number of posts, this blog is important to me.

I mentioned that I'm going on interviews. For those of you unfamiliar with the process, during the fourth and final year of medical school, students must decide what specialty they are going to train in. When we graduate from medical school in May, we will receive our diploma, become doctors, and have the much-worked-for M.D. placed after our names. However, we can't just go out and hang up our shingle and start practicing medicine on patients. No no, first we have to complete a residency. While we do finally get paid during this period (hooray!), we are still under constant supervision and continuing to learn, albeit less than a medical student. We will be known as "residents", and this process could take anywhere from 3 to 7+ years depending on the specialty.

So I'm traveling around the country, interviewing at different residency programs, trying to convince people of why I would make a good doctor and a valuable addition to their institution. It's rather intimidating and exhausting, not to mention I've now developed a surprisingly passionate hatred of people who place both of their carry-on items in the overhead compartments on airline flights. However, it has brought about a great deal of introspection regarding my life and what's important to me. One of the things I find myself talking about time and time again is communication, and my interest in writing naturally comes up as an example of practicing my communication skills.

I do want to be a writer as part of my career. The best way to do that is to write as much as I can and read what other people have written. I need to make it a priority. While interviews may be nerve-wracking, the questions I've been asked have helped me remember experiences during medical school that affected me in different ways. I plan to write about these experiences and other random thoughts in the near future. So, stay tuned! I promise I'm not going anywhere this time.