MEDICAL LABORATORY SCIENCES – DEGREE QZ05

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A mixing study corrects a prolonged aPTT. This finding most strongly suggests: Context: histopathology laboratory. [Medical Laboratory Sciences Degree Graduate Practice Set 5, Case 112]

A Polycythaemia B Thrombocytosis C A coagulation factor deficiency D Fibrinolysis is absent E A strong inhibitor is definitely present

External quality assessment primarily provides: Context: microbiology laboratory. [Medical Laboratory Sciences Degree Graduate Practice Set 5, Case 120]

A A patient diagnosis B A replacement for internal QC C A stock count D Independent comparison of laboratory performance with peers or assigned targets E A reagent prescription

An antibody screen before transfusion aims to detect: Context: research laboratory. [Medical Laboratory Sciences Degree Graduate Practice Set 5, Case 34]

A Urine protein B Malaria parasites C Platelet count D Clinically significant unexpected red-cell antibodies E Serum glucose

Pre-analytical nucleic acid degradation can cause: Context: advanced haematology unit. [Medical Laboratory Sciences Degree Graduate Practice Set 5, Case 68]

A Guaranteed false positives B False-negative or unreliable molecular results C Thrombocytosis D Improved sequencing depth E Higher haemoglobin

Failure of a prolonged aPTT to correct on an appropriate mixing study suggests: Context: quality-management review. [Medical Laboratory Sciences Degree Graduate Practice Set 5, Case 145]

A Normal coagulation B A circulating inhibitor may be present C Hyperglycaemia D Thrombocytopenia only E Iron deficiency

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