Plasma Enzymes Flashcards

(33 cards)

0
Q

Inherited abnormal variants of plasma cholinesterase with low biological activity

A

Decreased plasma cholinesterase

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1
Q

Hepatic disease

A

Decreased plasma cholinesterase synthesis

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2
Q

Ingestion of organophosphates or absorption via skin

A

Decreased cholinesterase activity (acts as irreversible inhibitor)

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3
Q

High levels of acetylcholine

A

Decreased plasma cholinesterase

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4
Q

Atropine sulfate

A

Decreased plasma cholinesterase (competitive antagonist)

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5
Q

Nephrotic syndrome

A

Increased plasma cholinesterase (excreted in urine)

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6
Q

Rapidly growing cells: liver recovery

A

Increased plasma cholinesterase

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7
Q

AST is normally high in what cells?

A

Cardiac and skeletal muscle, liver, kidney, erythrocytes

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8
Q

Artefactual (hemolysis) causes?

A

High AST

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9
Q

Myocardial infarction causes?

A

Very High AST

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10
Q

Circulatory failure causes?

A

Very High AST and Marked increases of ALT

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11
Q

Acute viral hepatitis causes?

A

Very High AST and Marked increases of ALT

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12
Q

Cells that have high concentrations of ALT?

A

Liver, skeletal muscle, kidney (lesser extent)

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13
Q

Liver cirrhosis causes?

A

Moderate increases of ALT

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14
Q

Cholestatic jaundice causes?

A

Moderate increases of ALT

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15
Q

Post cardiac surgery causes?

A

Moderate increases of ALT

16
Q

Skeletal muscle disease causes?

A

Moderate increases of ALT

17
Q

Pregnancy

A

Changes in ALP

18
Q

Infancy and childhood causes?

A

Changes in ALP

19
Q

High fat meals cause?

A

Changes in ALP

20
Q

Diseases that affect the bile duct cause?

A

Changes in ALP

21
Q

Bone diseases cause?

A

Changes in ALP

22
Q

What cells acid acid phosphatase found in?

A

Prostate, liver, erythrocytes, platelets, bone

23
Q

Which type of lactate dehydrogenase is indicative of myocardial infarction?

24
Which type of lactate dehydrogenase is indicative of acute hepatitis?
High LDH-5
25
What cells is GGT normally found in?
Liver and bile duct, kidney, pancreas
26
Induced enzyme synthesis by detox of drugs and alcohol by the gamma-glutamyl cycle in liver causes?
Raised GGT
27
Anticonvulsants, phenobarbitone and alcohol increase or decrease GGT? Why?
Raised GGT. They induce proliferation of endoplasic reticulum releasing GGT
28
Cholestatic liver disease causes?
Raised GGT
29
Hepatocellular damage causes?
Raised GGT
30
Explain what enzymes are involved in bile duct diseases and at what levels?
Elevated GGT and ALP
31
Explain what enzymes are involved in bone diseases and at what level?
Normal GGT and raised ALP
32
What enzyme/s are elevated in acute pancreatitis?
Amylase and lipase