A patient with a coagulation disorder is found to have an elevated level of antithrombin III, what is the likely diagnosis?

A Disseminated intravascular coagulation (DIC)
B Thrombotic thrombocytopenic purpura (TTP)
C Antiphospholipid syndrome
D Nephrotic syndrome ✓

Explanation

Elevated levels of antithrombin III can be seen in nephrotic syndrome due to loss of antithrombin III in the urine, leading to an increased risk of thrombosis.

Source

Harrison's Principles of Internal Medicine
Hematology Hematology: Coagulation Disorders Hematology: Coagulation Disorders Hard MEDICAL Confidence: medium