An overnight surgical consult gets settled at the bedside, not on the phone. A surgeon with twenty years of night call on what to ask the Emergency Medicine physician, how to examine a patient in a hallway with dignity, why you check both groins on every obstructed patient, and how to write a note that still holds up at six in the morning.

You read all twenty-six charts at home last night. At six the attending will ask what happened overnight, and most of your answer will be decisions your intern made about patients you know only on paper.

An intern stopped me in a stairwell in November and asked how long a person stays this tired. Being tired doesn’t take what you know. It takes the walk back down the hall to somebody you already decided about, and you won’t feel it go.

A liter of fluid will raise almost anyone's blood pressure for a while, which is exactly the problem with it. An attending's walkthrough of postoperative hypotension: how to tell a real number from a cuff artifact, what perfusion looks like under your hand, why the bolus is a test rather than a gesture, and what a transient responder is telling you.

The day team leaves, and nineteen patients you didn't operate on are yours until morning. An attending's guide to surgical cross-cover: sorting the page from the workroom, reading the trend instead of the number, treating the nurse's read as data, getting to the doorway before the chart, and calling your senior before you're comfortable. Night float has never been a knowledge test. It's a triage problem with a phone attached.