Clinical Ezymology Flashcards
Diagnostic indicators
Study the blood samples and enzymatic levels. i.e enzymes that represent the activity of specific organ.
Enzymes are therapeutic agents
using enzymes as therapeutic drugs.
2 Categories of clinical enzymology
Secretory - processes happening in the blood
Intracellular - Not found in the blood e.g lactate dehydrogenase.
Prothrombin time
Screening assay to detect deficiencies of 1 or more coagulation factors (blood clotting)
Due to : Hereditary Vitamin K deficiency Liver disease Coagulation factor inhibition Lupus-like anti coagulant inhibitor Non specific PT inhibitors (monoclonal, immunoglobulin, fibrin degradation)
Blood Clotting
Occurs in 2 ways:
Fibrinogen
Plasminogen
1) Activation of Calcium, makes them unavailable, disabling the cascade.
2) Test by adding calcium, record how quick the response
3) Measure formation of clot by spectroscopy. But unable to define which part of cascade is involved.
Normal clotting time : 0.8-1.2
Plasminogen activation
Proteolytic cleavage.
Monitoring
ELISA.
Using antibodies that is bound to fluor enzymes. Measuring the fluorescence and plotting a standard curve.
2 types of plasminogen deficiencies
Type 1: Associated with pseudomembrane disease especially impaired wound healing/female fertility.