Which of the following statements is true regarding the laboratory diagnosis of Factor XIII deficiency?

A It is diagnosed by measuring the Factor XIII antigen level
B It is diagnosed by performing a clot solubility test ✓
C It is diagnosed by measuring the prothrombin time
D It is diagnosed by performing a bleeding time test

Explanation

Factor XIII deficiency is diagnosed by performing a clot solubility test, which measures the ability of a clot to resist dissolution in urea or other solubilizing agents.

Source

Williams Hematology
Hematology Hematology: Coagulation Disorders Hematology: Coagulation Disorders Hard MEDICAL Confidence: high