Enzymes in Clinical Diagnosis Quiz

Which fluid is the non-cellular part of blood?

• Serum

• Plasma

• Lymph

• Cerebrospinal fluid

Which type of enzymes are actively secreted into the blood by certain cell types?

• Enzymes involved in blood coagulation

• Enzymes released from cells during normal cell turnover

• Enzymes with no physiologic use in the plasma

• Enzymes that function intracellularly

What do increased plasma levels of enzymes often indicate?

• Normal cell turnover

• Steady state in the body

• Tissue damage

• Physiologic use in the plasma

Which enzyme is abundant in the liver and signals possible damage to hepatic tissue?

• Alkaline Phosphatase (ALP)

• Alanine aminotransferase (ALT)

• Aspartate aminotransferase (AST)

• Lactate Dehydrogenase (LD)

What is the main function of lipase in the body?

• Break down starch

• Catalyze the hydrolysis of fats

• Convert triglycerides to monoglycerides

• Oxidize pyruvate to lactate

Which enzyme is highly sensitive and specific for damage to cardiac tissue?

• Creatine Kinase (CK)

• Troponin T

• Cholinesterase (ChE)

• Amylase

What is the main cause of necrosis in living tissue?

• Toxins

• Apoptosis

• Increased cell metabolism

• Factors external to the cell

Which enzyme is used in the investigation of patients with suspected Myocardial Infarction (M.I.) and in liver disease?

• Alanine aminotransferase (ALT)

• Aspartate aminotransferase (AST)

• Cholinesterase (ChE)

• Alkaline Phosphatase (ALP)

What is the effect of haemolysis on some clinical biochemistry and haematology test results?

• Decrease in Albumin levels

• Decrease in ALT levels

• Increase in Troponin T levels

• Increase in Potassium (K+) levels

What is the primary function of amylase in the digestive system?

• Break down proteins

• Convert carbohydrates into sugars

• Facilitate absorption of vitamins

• Produce bile for fat digestion