Right up front, let me tell you - even if you are EXCELLENT at it, in academics, you will NEVER be right. You've hit the nail on the head - either too much, or too little. It doesn't change as a resident - the attending will always, always say you're saying too much, or not enough. I can think of one attending, when I was a resident, that, right up until I graduated, never backed off this. I can see why he's in academics - 'cause he wouldn't cut it in private practice.
What I tell the students and residents is that, in opposition to IM, I need to know in the first 10 seconds why the patient is there. What I need are pertinent positives and negatives - vital signs are vital - if there's something amiss, I need to know. Brief history of the problem. Medical history - yes or no, if the pt has had it before (pneumonia, cardiac, already fractured that ankle and had ORIF). Brief physical exam. But, to be a star, give me an assessment and plan. I know you made it through your 3rd year. Anyone can examine the patient. But what do you DO with them? That is key. What are the 8 things in the chest that can kill the patient? What are the common and uncommon causes of headache (and how do you rule in/rule out)?
62 y/o male, complaining of chest pain, dull, squeezing, mid-sternal, constant, began 2 days ago, occasional nonproductive cough, febrile to 102 here. History of MI 5 years ago with CABG. Also history of hypertension. Tachycardic, but EKG is sinus tach. Chest Xray is pending. I'm thinking pneumonia, or at least bronchitis, but I have to consider cardiac involvement. Diagnostically, Chem7, CBC, cardiac markers, and this is what the BNP was made for. Also blood cultures (although I'm aware of low utility). For treatment, Tylenol 1g, aspirin 81mg times 4, and we can wait for the CXR for the antibiotic. For nitroglycerin, I defer to your discretion. Given my choice, though, I would try it.