What is the significance of AST?

1 Answer

Answer :

It is significantly elevated in myocardial infarction and moderately elevated in liver diseases.

Related questions

Description : On which day following acute myocardial infarction the estimation of serum AST will be of greatest significance? (A) First day (B) Second day (C) Third day (D) Fourth day

Last Answer : Answer : B

Description : Serum AST activity is not characteristically elevated as the result of (A) Myocardial infarction (B) Passive congestion of liver (C) Muscular dystrophies (D) Peptic ulcer

Last Answer : Answer : D

Description : On the third day following onset of acute myocardial infarction, which enzyme estimation will have the best predictive value? (A) Serum AST (B) Serum CK (C) Serum ALT (D) Serum LDH

Last Answer : Answer : D

Description : Which enzyme estimation will be helpful in differentiating the elevated serum ALP found in obstructive jaundice as well as bone disorders? (A) Serum AST (B) Serum ALT (C) Serum LDH (D) Serum γ-GT

Last Answer : Answer : D

Description : If results of the serum bilirubin, serum ALP, LDH and AST determinations suggest obstructive jaundice, the best confirmatory test would be the estimation of (A) Serum ALT (B) Serum 5’ nucleotidase (C) Serum Pseudo cholinesterase (D) None of these

Last Answer : Answer : B

Description : Patients with hepatocellular jaundice, as compared to those with purely obstructive jaundice tend to have (A) Lower serum ALP, LDH and AST activity (B) Lower serum ALP, Higher LDH and AST activity (C) Higher serum ALP, LDH and AST activity (D) Higher serum ALP, Lower LDH and AST activity

Last Answer : Answer : B

Description : On the third day of onset of acute myocardial infarction the enzyme elevated is (A) Serum AST (B) Serum CK (C) Serum LDH (D) Serum ALT

Last Answer : Answer : C

Description : In-thu-see-ast or en-thu-see-ist?

Last Answer : En…Pronounced “ehN” And your details could use clarification “I used to always use the former but have recently switched to the former”

Description : AST?

Last Answer : DefinitionAST (aspartate aminotransferase) is an enzyme found in high amounts in heart muscle and liver and skeletal muscle cells. It is also found in lesser amounts in other tissues.This article discusses ... a needle into the vein. The blood collects into an airtight vial or tube attached to the

Description : Patient came with low iron and high AST and high MCV no megaloblasts in the blood wt is the Dx? Alcohol Vitamin B12defeciency Folic acid deficiency Due to drugs

Last Answer : Alcohol

Description : The letters in the first set have a certain relationship. On the basis of this relationship mark the right choice for the second set: AST : BRU : : NQV : ? (A) ORW (B) MPU (C) MRW (D) OPW

Last Answer : Answer: D Decode First character with Next Alphabet and Previous Character with next Alphabet relationship Therefore Decode N Q V with O P W

Description : The letters in the first set have certain relationship. On the basis of this relationship what is the right choice for the second set ? AST : BRU : : NQV : ? (A) ORW (B) MPU (C) MRW (D) OPW

Last Answer : Answer: D AST : BRU : : NQV : ? The Relationship show that First letter DECODE with next alphabet, and second letter DECODE with the previous alphabets and so on. Therefore N --> O, Q --> P, and V --> W i.e OPW.

Description : Pentose phosphate pathway is of significance because it generates (A) NADPH for reductive synthesis (B) Regenerates glucose 6-phosphate (C) Generates fructose 6-phosphate (D) Forms glyceraldehyde 3-phosphate

Last Answer : Answer : A

Description : What is the significance of lipoprotein (a)? 

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Description : What is the significance of glycated hemoglobin?

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Description : What is the clinical significance of C peptide?

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Description : What is the clinical significance of GDM?

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Description : What is the significance of gluconeogenesis?

Last Answer : Gluconeogenesis is necessary to maintain blood glucose level especially under conditions of starvation.

Description : What is the significance of Glycolysis?

Last Answer : It is the only pathway that is taking place in all the cells of the body. Glycolysis is the only source of energy in erythrocytes. Moreover, anaerobic glycolysis forms the major source of energy in actively contracting muscles.

Description : What is the significance of ALT?

Last Answer : Very high values are seen in acute hepatitis. Rise in ALT levels may be noticed several days before clinical signs such as jaundice are manifested. Moderate increase may be seen in chronic liver diseases such as cirrhosis, and malignancy in liver.

Description : What is their clinical significance?

Last Answer : Their normal levels in blood are very low, but are drastically increased during cell death (necrosis) or disease. Therefore, assays of these enzymes are very useful in diagnosis of diseases.

Description : What is the significance of zymogen activation?

Last Answer : Gastro-intestinal enzymes are synthesised in the form of pro-enzymes, and only after secretion into the alimentary canal, they are activated. This prevents autolysis of cellular structural ... form, their activation takes place only when necessity arises. This prevents intravascular coagulation.

Description : What is Km significance? 

Last Answer : Km is independent of enzyme concentration. Km value is thus constant for an enzyme. It is the characteristic feature of a particular enzyme for a specific substrate. Km denotes the affinity of enzyme to ... the lesser the numerical value of Km, the affinity of the enzyme for the substrate is more.

Description : What is the significance of SH groups in pro- teins?

Last Answer : The SH group of cysteine can form a disulfide (S- S) bond with another cysteine residue. The two cysteine residues can connect two polypeptide chains by the formation of interchain disulfide bonds.

Description : What is the clinical significance of transami- nases?

Last Answer : Transaminases in blood are elevated in liver and heart diseases.

Description : What is the biological significance of transami- nation reaction?

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Description : What is its clinical significance?

Last Answer : Digoxin increases the contractility of the cardiac muscle, by inhibiting the sodium pump