1 MLT Exam Chemistry MLT Exam Chemistry Solved With Verified Answers (2024 -2025 Study G uide Test Bank) Pregnant women with symptoms of thirst, frequent urination or unexplained weight loss should have which test performed? {Ans: - Glucose tolerance test The conversion of glucose or other hexoses into lactate or pyruvate is called: {Ans: - Glycolysis Which serum constituents is unstable if a blood specimen is left standing at room temperature for 8 hours before processing? {Ans: - Glucose The most specific method for the assay of glucose in all body fluids utilizes: {Ans: - Hexokinase Chylomicrons are present in which dyslipidemias? {Ans: - Deficiency in lipoprotein lipase activity Turbidity in serum suggests elevation of: {Ans: - Chylomicrons Blood was collected in a serum separator tube on a patient who has been fasting since midnight. The time of collection was 7am. The laboratory test which should be recollected is: {Ans: - Triglycerides The substance that is measured to estimate the serum concentration of triglycerides by most methods is: {Ans: - Glycerol Urobilinog en is formed in the: {Ans: - Intestine Kernicterus is an abnormal accumulation of bilirubin in: {Ans: - Brain tissue A stool specimen that appears black and tarlike should be tested for the presence of: {Ans: - Occult blood 2 MLT Exam Chemistry In amniotic fluid, the proced ure used to detect hemolytic disease of the newborn is: {Ans: - Measurement of absorbance at 450nm In the Malloy and Evelyn method for the determination of bilirubin, the reagent that is reacted with bilirubin to form a purple azobilirubin is: {Ans : - Diazotized sulfanilic acid In the Jendrassik -Grof method for the determination of serum bilirubin concentration, quantitation is obtained by measuring the green color of: {Ans: - Azobilirubin In the Jendrassik -Grof reaction for total bilirubin, alkaline tartrate is added to: {Ans: - Eliminate many spectrophotometric interference The most specific enzyme test for acute pancreatitis is: {Ans: - Lipase Which enzyme is used in the diagnosis of acute pancreatitis? {Ans: - Amylase (AMS) Which enzyme catalyzes the conversion of starch to glucose and maltose? {Ans: - Amylase (AMS) Aspartate amino transferase (AST) is characteristically elevated in diseases of the: {Ans: - Liver Aspartate aminotransferase (AST) and alani ne aminotransferase (ALT) are both elevated in which disease? {Ans: - Viral hepatitis The enzyme, which exists chiefly in skeletal muscle, heart, and brain, is grossly elevated in active muscular dystrophy, and rise early in myocardial infraction is: {Ans: - Creatine kinase The enzyme present in almost all tissues that may be separated by electrophoresis into 5 components is: {Ans: - Lactate dehydrogenase The protein portion of an enzyme complex is called the: {Ans: - Apoenzyme The function of serum alb umin in the peripheral blood is to: {Ans: - Maintain colloidal osmotic pressure 3 MLT Exam Chemistry The first step in analyzing a 24 -hour urine specimen for quantitative urine protein is: {Ans: - Measure the total volume Creatine clearance is used to estimate the: {Ans: - Glomerular filtration rate Clinical assays for tumor markers are most important for: {Ans: - Monitoring the course of a known cancer Increased concentrations of alpha -fetoprotein (AFP) in adults are most characteristically associated with: {Ans: - Hepatoc ellular carcinoma Cancer antigen 125 (CA 125) is a tumor marker associated with: {Ans: - Ovarian and endometrial carcinoma Bromocresol purple at a pH of 5.2 is used in a colorimetric method to measure: {Ans: - Albumin Severe diarrhea causes: {Ans: - Metabolic acidosis An emphysema patient suffering from fluid accumulation in the alveolar spaces is likely to be in what metabolic state? {Ans: - Respiratory acidosis At blood pH 7.40, what is the ratio of bicarbonate to carbonic acid? {Ans: - 20:1 The reference range for the pH of arterial blood measured at 37C is: {Ans: - 7.35 -7.45 Metabolic acidosis is described as a: {Ans: - Decrease in CO2 content and pCO2 with a decreased pH Respiratory acidosis is described as a: {Ans: - Increas e in CO2 content and pCO2 with a decreased pH A common cause of respiratory alkalosis is: {Ans: - Hyperventilation The most important buffer pair in plasma is the: {Ans: - Bicarbonate/ carbonic acid pair
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