OSCE OSCE Clinical Reasoning and Diagnosis 2

Question 1

A patient presents with polyuria, polydipsia, and a random blood glucose of 280 mg/dL. In an OSCE reasoning station, which diagnosis is most consistent?

Accepted Answer

Diabetes mellitus

Answer

The classic triad of polyuria, polydipsia, and hyperglycemia (≥200 mg/dL) meets the diagnostic criteria for diabetes mellitus.

Question 2

During an OSCE, you note a patient has unequal pupils (anisocoria) with ptosis on the right side. Which condition should your clinical reasoning prioritize?

Accepted Answer

Horner syndrome

Answer

Anisocoria with ptosis and miosis on the same side is the classic triad of Horner syndrome, often indicating a serious underlying pathology.

Question 3

In an OSCE differential diagnosis station, a young athlete presents with sharp chest pain worsening with inspiration. Which diagnosis is most likely?

Accepted Answer

Pleuritis or costochondritis

Answer

Sharp, inspiration-worsening chest pain in a young, otherwise healthy patient is most consistent with pleuritis or costochondritis rather than a vascular emergency.

Question 4

A patient in your OSCE station has a raised JVP, bilateral pitting edema, and bibasilar crackles. Which diagnosis fits this clinical picture?

Accepted Answer

Congestive heart failure

Answer

Raised JVP, bilateral edema, and crackles form the classic triad of congestive heart failure due to fluid overload.

Question 5

An OSCE patient presents with sudden severe headache described as 'the worst headache of my life.' What should clinical reasoning prioritize immediately?

Accepted Answer

Subarachnoid hemorrhage

Answer

A 'thunderclap' headache — sudden and maximally severe — is a red flag for subarachnoid hemorrhage until proven otherwise.

OSCE Practice Test

OSCE Practice Test

OSCE OSCE Clinical Reasoning and Diagnosis 2