The ten conditions
that fill the wards
A general-medicine census repeats itself. Ten diagnoses account for most of the beds an intern will ever cover, and knowing them as patterns — what the evidence supports, where the value is, what the intern personally owns from admission through discharge — turns the first months from improvisation into recognition. This hour walks all ten. It is a map, not a manual: the medicine is your faculty’s to teach from current guidelines.
Why this hour
The bootcamp’s three days teach the systems of ward medicine — the admission, the cross-cover call, the handoff, the discharge — on the evidence that those are July’s real gaps (the evidence). This hour adds the other axis: the content that fills those systems. An intern who can run an admission and also knows what the ten commonest admissions look like stops spending the first month meeting each diagnosis for the first time at 11 p.m.
It is also where the high-value-care habit is best planted. The ward is where low-value testing accumulates quietly1 — the daily labs, the repeat imaging, the antibiotic nobody narrowed — and interns write most of those orders. Teaching value alongside the diagnosis, in the same hour, is how it becomes a reflex instead of a lecture.
What interns leave able to do
- Name the ten diagnoses that fill most general-medicine beds and recognize each one’s admission shape.
- State the direction of current evidence for each, and which society guideline owns it.
- Name the high-value move and the classic low-value habit in each.2
- State the intern’s own job for each across the whole admission: the first orders, the daily question, the discharge risk.
- Recognize which of the ten most often deteriorate overnight — and what the cross-cover contingency should say.
The frame — the same four questions, ten times
- How does it arrive? The admission picture, including the version that does not look classic.
- What does the current evidence support? The direction of care and the guideline that owns it, read in its current version rather than remembered from a rotation.
- Where is the high-value care — and the low-value habit? The test or treatment that changes management, and the ritual that does not.2
- What does the intern own? The admission orders, the daily reassessment, the overnight contingency, and the discharge risk this diagnosis carries.
The fourth question is the one that separates ward medicine from a textbook: every diagnosis below has a characteristic way of going wrong at 2 a.m. and a characteristic way of bouncing back within a month. Teaching those two things alongside the diagnosis is what makes this an intern hour rather than a review lecture — and both connect straight to the handoff session’s contingency plans and the discharge session’s time-out.
The ten
1. Community-acquired pneumonia. The ward’s commonest infectious admission, with a guideline that is unusually clear about what not to do.3 The evidence-based approach: severity assessment driving the site of care, empiric therapy chosen against local resistance patterns rather than habit, and de-escalation and duration guided by response — with the recognition that most patients need far shorter courses than tradition assumes. The value question is testing and duration: routine follow-up chest imaging in a recovering patient and reflexive broad-spectrum coverage for “healthcare-associated” risk that the current guideline retired are the classic low-value habits. The intern owns: the severity assessment on admission, the antibiotic narrowed when cultures allow (the stewardship session), the oxygen weaned rather than left on, and a discharge that states the stop date.
2. Heart failure exacerbation. The classic readmission diagnosis and the census’s most reliable regular. The approach: establish congestion versus low output, decongest adequately and document the response honestly, and — the part interns most often miss — optimize the chronic guideline-directed therapy during the admission, because discharge without it wastes the hospitalization. The value question is daily measurement over repeat testing: weights, honest intake and output, and examination beat serial natriuretic peptides and repeat echocardiography in a patient whose diagnosis is already known. The intern owns: the volume assessment every morning, the electrolytes and renal function that diuresis moves, the medication reconciliation at discharge, and the follow-up appointment that actually exists — this diagnosis punishes a weak discharge more than any other.
3. COPD exacerbation. The other reliable regular, and the one where non-invasive ventilation has changed outcomes for the sickest. The approach: bronchodilators, a short course of systemic corticosteroids at the lower doses and shorter durations the evidence now supports, antibiotics for the patients who meet criteria rather than all of them, and non-invasive support used early where indicated. The value question is the tail: long steroid courses, blanket antibiotics, and daily gases in a stable patient add harm without benefit. The intern owns: recognizing rising carbon dioxide clinically, the inhaler technique actually observed before discharge, the smoking-cessation conversation started in the hospital, and the pulmonary-rehabilitation and vaccination referrals that prevent the next admission.
4. Chest pain and suspected acute coronary syndrome. The admission with the most protocolized front end and the most judgment at the back: risk stratification with a validated pathway, high-sensitivity troponin interpreted as a trend against a clinical picture rather than a binary, and the decision about further testing driven by pretest probability. The value question is the low-risk patient: serial testing and admission for chest pain in patients whom validated pathways identify as low risk is among the best-documented low-value patterns in hospital medicine — and the discipline is to trust the pathway rather than the anxiety. The intern owns: the history that actually stratifies risk, the electrocardiogram compared with the old one, the trend, and the honest conversation with a patient who wants certainty medicine cannot give.
5. Venous thromboembolism. Deep-vein thrombosis and pulmonary embolism, where the diagnostic pathway is a model of evidence-based sequencing: pretest probability first, then the test that probability makes informative, then treatment stratified by severity — including outpatient management for selected low-risk pulmonary embolism, which many teams still admit by reflex. The value question is the pathway followed in order: imaging ordered before probability is assessed produces both missed diagnoses and incidental findings; the D-dimer used correctly is one of medicine’s better cheap tests, and used carelessly it generates scans. The intern owns: the probability assessment documented before the scan, the anticoagulation started or held with a stated reason, the bleeding-risk conversation, and the duration question raised before discharge.
6. Urinary tract infection and pyelonephritis. Common, and the source of one of medicine’s most persistent errors: treating asymptomatic bacteriuria. The approach: diagnose on symptoms plus supporting data rather than on a urinalysis sent reflexively; treat with the narrowest effective agent for the shortest evidence-supported duration; and reserve imaging for the patient who does not respond. The value question is the culture nobody should have sent: the urine sent for confusion alone in an older patient, then treated because it grew something, remains a flagged low-value practice on multiple societies’ Choosing Wisely lists1 (the recognized exceptions — pregnancy, and screening before urologic procedures — live in the current infectious-diseases guideline) — and the harm is real: antibiotic side effects, resistance, and Clostridioides difficile. The intern owns: asking what symptom prompted the test, resisting the reflex in the delirious older patient while pursuing the real cause (change from baseline is the chief complaint), and narrowing on culture results.
7. Cellulitis and skin and soft-tissue infection. Deceptively simple and frequently wrong: a substantial share of admitted “cellulitis” is something else — stasis dermatitis, gout, deep venous thrombosis, contact dermatitis — and the mimics are commonest in exactly the bilateral, afebrile, chronically swollen legs that get admitted. The approach: reconsider the diagnosis before escalating therapy, distinguish purulent from non-purulent to guide coverage, and mark and follow the border. The value question is diagnosis before escalation: blood cultures in uncomplicated cellulitis rarely change management, and the reflex broadening of antibiotics for a rash that is not infected is a common cascade. The intern owns: the alternative diagnosis considered out loud, the border marked, the response reassessed at 24 to 48 hours, and the oral switch when the patient is improving.
8. Gastrointestinal bleeding. The ward version of the ICU condition: risk stratification determines the setting, restrictive transfusion is the evidence-based default in stable patients, and the definitive diagnosis and treatment are endoscopic. The value question is the transfusion reflex and the repeat scope: transfusing toward a comfortable number rather than a supported threshold is common, costly, and on the evidence worse. The intern owns: access and resuscitation, the anticoagulant and antiplatelet decisions raised early with the right consultants, the accurate stool and vomit history nobody enjoys taking, and the follow-up plan for the anemia after the bleeding stops.
9. Acute kidney injury. Rarely the admitting diagnosis and frequently the complication — which is why it belongs on this list: it develops on your watch, and the intern is the person positioned to notice. The approach: find the cause (perfusion, obstruction, drug, intrinsic disease), correct what is correctable, protect what remains, and adjust every dose to the function the patient actually has. The value question is the cheap workup done first: the medication list, the volume assessment, the bladder, and the urine before imaging that will not change management. The intern owns: the nephrotoxin review at every transition, the dose adjustments (the medication-safety session), the trend noticed early, and the contrast conversation held before the scan rather than after.
10. Delirium and the hospitalized older adult. The most common serious complication of hospitalization in older adults, the most missed, and the one whose best care costs nothing: multicomponent non-pharmacological prevention — orientation, mobility, sleep, sensory aids, hydration, family presence — with a search for the precipitant and pharmacological restraint reserved for genuine danger. The value question is the reflex workup versus the bedside one: head imaging for delirium without focal findings, head trauma, or anticoagulation is a classic low-value test, while the medication list, the bladder scan, the oxygen saturation, and the infection assessment are nearly free and far more often diagnostic. The intern owns: the screen performed rather than assumed, the deliriogenic medications stopped (the cross-cover session’s sedative-request lesson), the glasses and hearing aids actually requested, and the family conversation that explains what delirium is — and that it may outlast the admission.
And the three that arrive alongside everything else: alcohol withdrawal, which should be identified on admission rather than discovered on night two — ask every patient, use your protocol, and treat early; atrial fibrillation, which is a high-volume admitting diagnosis in its own right and rides along with half the list besides — rate, rhythm, and the stroke-risk conversation, per the current guideline; and inpatient glycemic management, which follows nearly every one of these patients and lives in the glycemic-emergencies hour.
Running the hour
| Minutes | Block |
|---|---|
| 0–5 | Frame: “a census repeats itself — today you learn the repeats” and the four questions |
| 5–12 | The room lists their current patients by diagnosis; the overlap with the ten makes the point better than any slide |
| 12–45 | The ten at roughly three minutes each, faculty adding the current guideline and one local pathway per condition |
| 45–55 | Two rounds: the 2 a.m. round (for each, what deteriorates and what the contingency should say) and the value round (one low-value habit each intern has already seen) |
| 55–60 | Pocket card · where your pathways and order sets live |
Watch for, and debrief by name: the hour turning into ten mini-lectures — the four questions are the discipline that prevents it; value framed as rationing rather than as avoiding harm; and the discharge half skipped for the admission half, when the discharge is where most of these diagnoses actually fail. The 2 a.m. round is the highest-yield ten minutes on the page — it converts a content hour into cross-cover preparation.
Pocket card
- Read the current guideline; don’t recite the last rotation.
- Which test changes management? Order that one.
- Every antibiotic: narrow it, and name the stop date.
- Daily: is this still needed — the labs, the oxygen, the fluids, the line?
- Ask what symptom prompted the test before you treat the result.
- What deteriorates at 2 a.m.? Write that contingency into sign-out.
- Most of these fail at discharge, not admission. Plan it from day one.
Notes
This hour runs in the weeks-2–8 survival series, early — it pays off from the first ward month. Faculty supply the current guideline for each condition and your hospital’s own pathways and order sets. Re-check the list against your own service’s discharge diagnoses every year or two; a census’s top ten is local, and it drifts.
This page is a curriculum framework, not clinical instruction: it states no diagnostic criteria, thresholds, doses, durations, or transfusion triggers, and the direction-of-evidence statements are teaching frames to be verified against current guidelines before teaching. Management belongs to the supervised team under institutional protocol. Last reviewed July 2026.
Sources
- Cassel, C. K., & Guest, J. A. (2012). Choosing wisely: Helping physicians and patients make smart decisions about their care. JAMA, 307(17), 1801–1802. https://pubmed.ncbi.nlm.nih.gov/22492759/ ↩1 ↩2
- Owens, D. K., Qaseem, A., Chou, R., & Shekelle, P. (2011). High-value, cost-conscious health care: Concepts for clinicians to evaluate the benefits, harms, and costs of medical interventions. Annals of Internal Medicine, 154(3), 174–180. https://pubmed.ncbi.nlm.nih.gov/21282697/ ↩1 ↩2
- Metlay, J. P., Waterer, G. W., Long, A. C., Anzueto, A., Brozek, J., Crothers, K., Cooley, L. A., Dean, N. C., Fine, M. J., Flanders, S. A., Griffin, M. R., Metersky, M. L., Musher, D. M., Restrepo, M. I., & Whitney, C. G. (2019). Diagnosis and treatment of adults with community-acquired pneumonia: An official clinical practice guideline of the American Thoracic Society and Infectious Diseases Society of America. American Journal of Respiratory and Critical Care Medicine, 200(7), e45–e67. https://pubmed.ncbi.nlm.nih.gov/31573350/ ↩