Which of the following enzyme(s) is found in blood serum and is diagnostic of a heart...
Which of the following enzyme(s) is found in blood serum and is diagnostic of a heart attack if enzyme levels are elevated?
alkaline phosphatase, amylase, phosphohexose isomerase, lactate dehydrogenase, alanine aminotransferase
Homework Answers
Lactate dehydrogenase is the answer
Cardiac markers are
Enzymes- CK-MB,SGOT(Asparate amino transferase) LDH
Proteins- Troponins and Myoglobin
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Which of the following enzyme(s) is found in blood serum and is
diagnostic of a heart...
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in...
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in diagnostic decision making. a) Enzyme requires a purification step prior to analysis Enzyme is distributed in most tissues, high specificity, low sensitivity and demonstrates b) a short lag time and long elimination time. Enzyme has high sensitivity, high specificity, and demonstrates a short lag time and long c) elimination time. d) Enzyme is cleared in the urine. Question 30 (1 point) Which one of...
10. A 6-month old girl presents with the following symptoms: lactate acidosis (elevated serum levels of...
10. A 6-month old girl presents with the following symptoms: lactate acidosis (elevated serum levels of lactate), elevated levels of alanine in both her urine and blood, and muscle weakness (suggesting low levels of ATP). Doctors diagnose her problem as dihydrolipoamide dehydrogenase deficiency (present in two complexes!). They attempt to treat the girl with dietary supplements of riboflavin, thiamine, and niacin. a) Explain how this enzyme deficiency gives rise to lactate acidosis. (What's backing up, and where is it going?)...
10. A 6-month old girl presents with the following symptoms: lactate acidosis (elevated serum levels of...
10. A 6-month old girl presents with the following symptoms: lactate acidosis (elevated serum levels of lactate), elevated levels of alanine in both her urine and blood, and muscle weakness (suggesting low levels of ATP). Doctors diagnose her problem as dihydrolipoamide dehydrogenase deficiency (present in two complexes!). They attempt to treat the girl with dietary supplements of riboflavin, thiamine, and niacin. a) Explain how this enzyme deficiency gives rise to lactate acidosis. (What's backing up, and where is it going?)...
Which one of the following serum enzymes becomes elevated during the first 24 hours following the...
Which one of the following serum enzymes becomes elevated during the first 24 hours following the onset of acute pancreatitis? a. Amylase b. Alkaline phosphatase C. Creatinine phosphokinase d. Lactic acid dehydrogenase Patient is suspected of having a bone disorder. Which of the following tests would be most specific to rule in a bone disorder? a. ALT b. Alkaline phosphatase C. Alkaline phosphatase fractionation d. y-Glutamyl transpeptidase
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in...
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in diagnostic decision making. a) Enzyme requires a purification step prior to analysis Enzyme is distributed in most tissues, high specificity, low sensitivity and demonstrates b) a short lag time and long elimination time. Enzyme has high sensitivity, high specificity, and demonstrates a short lag time and long c) elimination time. d) Enzyme is cleared in the urine. Question 30 (1 point) Which one of...
Question 25 (1 point) Which of the following test panel is best suited for determining the...
Question 25 (1 point) Which of the following test panel is best suited for determining the presence of liver involvement? a) Aldolase, Cholinesterase, Acid Phosphatase b) Alanine Transaminase(ALT), Alkaline Phosphatase, g-Glutamyl-Transpeptidase (GGT) c) Aspartate Transaminase(AST), Lactate Dehydrogenase (LD), Creatine Kinase (CK) d) CK-2, LD5 Question 26 (1 point) The lag phase is not affected by; a) size of cell injury b) temperature. c) pressure. d) molecular weight of enzyme being measured.
Which of the following is not an enzyme that is used in molecular amplification methods? Please...
Which of the following is not an enzyme that is used in molecular amplification methods? Please select the single best answer DNA ligase Reverse transcriptase Alkaline phosphatase Amylase
4. Which of the following enzymes catalyzed reactions in glycolysis require(s) ATP as a substrate? A)...
4. Which of the following enzymes catalyzed reactions in glycolysis require(s) ATP as a substrate? A) Phosphoglycerate mutase E) Pyruvate kinase B) Aldolase F) Phosphofructokinase-1 C) Phosphoglycerate kinase G) Hexokinase D) Glyceraldehyde-3-phosphate dehydrogenase 5. Blood Lactate Levels during Vigorous Exercise The following graph shows the concentrations of lactate in blood plasma before, during, and after a 400 m sprint. Use your knowledge from chapter 14 to explain the causes of the rapid rise in lactate concentration? --Before-- - After Blood...
30. Which statement is correct regarding sample storage for the prothrombin time test? a. Stable for...
30. Which statement is correct regarding sample storage for the prothrombin time test? a. Stable for 24 hours if the sample is capped b. Stable for 24 hours if the sample is refrigerated at 4°C c. Stable for 4 hours if the sample is stored at 4°C d. Should be run within 8 hours 31. Which immunoglobulin can cross the placenta? a. IgG b. IgM c. IgA d. IgE 32. Which immunoglobulin appears in highest titer in the secondary response?...
A 52-year-old man with a history of AIDS, hypertension, diabetes mellitus, and alcohol abuse was found...
A 52-year-old man with a history of AIDS, hypertension, diabetes mellitus, and alcohol abuse was found unconscious in his home by his roommate. In the ER, he was hypotensive (103/60 mm Hg), febrile (101º F), and unresponsive. Computed tomography scan of the abdomen showed cholecystitis and gallstones. The patient was diagnosed with acute renal failure. He was administered intravenous fluids; BUN fell to 68 mg/dL and creatinine fell to 2.2 mg/dL. The patient’s blood culture report was positive for E....
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in diagnostic decision making. a) Enzyme requires a purification step prior to analysis Enzyme is distributed in most tissues, high specificity, low sensitivity and demonstrates b) a short lag time and long elimination time. Enzyme has high sensitivity, high specificity, and demonstrates a short lag time and long c) elimination time. d) Enzyme is cleared in the urine. Question 30 (1 point) Which one of...
10. A 6-month old girl presents with the following symptoms: lactate acidosis (elevated serum levels of lactate), elevated levels of alanine in both her urine and blood, and muscle weakness (suggesting low levels of ATP). Doctors diagnose her problem as dihydrolipoamide dehydrogenase deficiency (present in two complexes!). They attempt to treat the girl with dietary supplements of riboflavin, thiamine, and niacin. a) Explain how this enzyme deficiency gives rise to lactate acidosis. (What's backing up, and where is it going?)...
10. A 6-month old girl presents with the following symptoms: lactate acidosis (elevated serum levels of lactate), elevated levels of alanine in both her urine and blood, and muscle weakness (suggesting low levels of ATP). Doctors diagnose her problem as dihydrolipoamide dehydrogenase deficiency (present in two complexes!). They attempt to treat the girl with dietary supplements of riboflavin, thiamine, and niacin. a) Explain how this enzyme deficiency gives rise to lactate acidosis. (What's backing up, and where is it going?)...
Which one of the following serum enzymes becomes elevated during the first 24 hours following the onset of acute pancreatitis? a. Amylase b. Alkaline phosphatase C. Creatinine phosphokinase d. Lactic acid dehydrogenase Patient is suspected of having a bone disorder. Which of the following tests would be most specific to rule in a bone disorder? a. ALT b. Alkaline phosphatase C. Alkaline phosphatase fractionation d. y-Glutamyl transpeptidase
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in diagnostic decision making. a) Enzyme requires a purification step prior to analysis Enzyme is distributed in most tissues, high specificity, low sensitivity and demonstrates b) a short lag time and long elimination time. Enzyme has high sensitivity, high specificity, and demonstrates a short lag time and long c) elimination time. d) Enzyme is cleared in the urine. Question 30 (1 point) Which one of...
Question 25 (1 point) Which of the following test panel is best suited for determining the presence of liver involvement? a) Aldolase, Cholinesterase, Acid Phosphatase b) Alanine Transaminase(ALT), Alkaline Phosphatase, g-Glutamyl-Transpeptidase (GGT) c) Aspartate Transaminase(AST), Lactate Dehydrogenase (LD), Creatine Kinase (CK) d) CK-2, LD5 Question 26 (1 point) The lag phase is not affected by; a) size of cell injury b) temperature. c) pressure. d) molecular weight of enzyme being measured.
4. Which of the following enzymes catalyzed reactions in glycolysis require(s) ATP as a substrate? A) Phosphoglycerate mutase E) Pyruvate kinase B) Aldolase F) Phosphofructokinase-1 C) Phosphoglycerate kinase G) Hexokinase D) Glyceraldehyde-3-phosphate dehydrogenase 5. Blood Lactate Levels during Vigorous Exercise The following graph shows the concentrations of lactate in blood plasma before, during, and after a 400 m sprint. Use your knowledge from chapter 14 to explain the causes of the rapid rise in lactate concentration? --Before-- - After Blood...
30. Which statement is correct regarding sample storage for the prothrombin time test? a. Stable for 24 hours if the sample is capped b. Stable for 24 hours if the sample is refrigerated at 4°C c. Stable for 4 hours if the sample is stored at 4°C d. Should be run within 8 hours 31. Which immunoglobulin can cross the placenta? a. IgG b. IgM c. IgA d. IgE 32. Which immunoglobulin appears in highest titer in the secondary response?...
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