Chemistry MLT Questions With Complete Solutions

Sample Collection and Handling correct answer: 1.- Serum (red top) for most chemistry tests 2.- Plama- Heparin better than oxalate, EDTA, citrate 3.-Heparin (on ice)-ammonia, blood gases 4.- Sodium fluoride (gray top) a) Glucose (prevents glycolysis) b) NOT for BUN (inhibits urease) 5.- Acid Phosphatase must be stabilized or pH decreased 6.- EDTA a) NOT for Na+ of K+ (EDTA contains Na+ and K+) b) Not for Ca++ since calcium is chelated in EDTA (will cause a false decreased) correct answer: Sample Collection and HandlingR Remember Hemolysis correct answer: as the cell bursts, help (c) KLAMO the leak K k+ increased L LD increased A Aldolase (ALD increase) Acid Phosphatase (ACP Increased) M Mg++ increase P PO4 increases Carbohydrates: Glucose 1.- Digestion, metabolism, regulation correct answer: a) End product of carbohydrate digestion in the intestine b) Blood glucose is maintained at a fairly constant level by hormones (Insulin decreased; all others increase, see table on page 102) c) Provides energy for life processes Carbohydrates: Glucose 2.- Specimen collection and handling correct answer: a) Glucose levels decrease approximately 10 mg/dL per hour in whole blood (7%)