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Question 1

Which statement is NOT true about zero -onder reaction of Michaelis-Menten?

a reaction is linear with time
b. reaction is independent of substrate concentration
c.reaction is dependent of enzyme concentration
d.reaction is determined by substrate concentration

Answer 1

d.reaction is determined by substrate concentration

Question 2

Flipped pattern of LDH isoenzymes as observed in acute myocardial infarction
a.LDI<LD2>LD2
d. LDI>LD3</LD2>

Answer 2

c. LDI>LD2

Question 3

ALT concentration is normal in what condition?
a. Cirrhosis
b. Myocardial infarction
c. viral hepatitis
d. drug induced hepatoxicity

Answer 3

b. Myocardial infarction

Question 4

Which of the enzyme is a transferase?
a. Lipase
b. CK
c. LD
d. aldolase

Answer 4

b. CK

Question 5

Cofactors of enzyme except.
a. Mg
b. Ca
c. Zn
d. Na

Answer 5

d. Na

Question 6

The level of this enzyme is detenmined to asses a possible CNS damage
2 G6PD
b. GGT
c. aldolase
d. ск-вв

Answer 6

c. aldolase

Question 7

First cardiac marker to rise in acute myocardial infarction.
a.troponin T
b. CK-MB
c. myoglobin
d. LDH12

Answer 7

c. myoglobin

Question 8

Highest elevation of AST in the blood is seen in a
a. cirrhosis
b. myocardial infarction
c. acute viral hepatitis
d. skeletal damage

Answer 8

c. acute viral hepatitis

Question 9

GGT is normal in which condition?
a. heavy drinker
b. pancreatic cancer
c. hepatobiliary disease
d. pregnancy

Answer 9

d. pregnancy

Question 10

18. Holoenzyme.
    a. apoenzyme + prosthetic group
    b. apoenzyme + cofactor
    c. cofactor + prosthetic group
    d. cofactor + coenzyme

Answer 10

a. apoenzyme + prosthetic group

Question 11

Pyridoxal PO (VitB6) is coenzyme of what type of enzymes?
a. hydrolases
b. aminotransferases
c. lyases
d. oxidoreductases

Answer 11

b. aminotransferases

Question 12

Lactate dehydrogenase highest elevation is seen in.
a. MI
b. Pernicious anemia
c. viral hepatitis
d. prostatic carcinoma

Answer 12

b. Pernicious anemia

Question 13

All of the following cause false acidemia EXCEPT.
a. excess heparin
b. glycolysis
c. exposed to air
d. stored at room temperature

Answer 13

d. stored at room temperature

Question 14

Chronic obstructive pulmonary disease ABG result EXCEPT.
a. low pH
b. high HCO3
c. high PCO2
d. hypoventilation

Answer 14

c. high PCO2

Question 15

Metabolic alkalosis is due to
a. high HCO3
b. high PCO2
c. low HCO3
d. low PCO2

Answer 15

a. high HCO3

Question 16

Electrolyte imbalance observed in metabolic acidosis
a. hyponatremia
b hyperkalemia
c. hypocalcemia
d. hypomagnesemia

Answer 16

b hyperkalemia

Question 17

Kidney compensation.
a. HCO3 reabsorption, H+ excretion
b. HCO3 excretion, H+ reabsorption
c. both HCO3 and H+ excretion
d. both HCO3 and H+ reabsorption

Answer 17

a. HCO3 reabsorption, H+ excretion

Question 18

Acid donates H+ in the reaction whereas Bases accepts H+.
a. Lewis
b. Arrheius
c. Bronsted and Lowry
d. Hippocrates

Answer 18

c. Bronsted and Lowry

Question 19

Excess heparin decreases.
n. HCOS
b. pH
c. pCO2
d. p02

Answer 19

b. pH

Question 20

Electrodes used to measure the partial pressure of CO2.
a. Glass
b. Valinomycin
c. Clark
d. Severinghaus

Answer 20

b. Valinomycin

Question 21

Clinical condition associfted with cyanocobalamin deficiency.
a. Giossitis
b. Beri Beri
c. Pellagra
d. Megaloblastic anemia

Answer 21

d. Megaloblastic anemia

Question 22

Prolong clotting time may be caused by deficiency of what vitamin?
a. A
b. E
c. K
b. complex

Answer 22

c. K

Question 23

A vitamin that can also be a hormone
a. C
b. D
c. B12
d. K

Answer 23

b. D

Question 24

Can be linked to the development of T2DM
a. Zinc
b. Copper
c. Selenium
d.Chronium

Answer 24

d.Chronium

Question 25

Which electrolyte serves also as an activator of enzymes? a. Na b. K c. CI d. HCO3

Answer 25

c. CI

Question 26

What specimen is used for determination of chloride in a suspected Cystic fibrosis? a. Serum b. urine c. sweat d. whole blood

Answer 26

c. sweat

Question 27

Which clinical condition is NOT associated with dilutional hyponatremia? a. diarrhea b. CHF c. nephrotic syndrome d. Cirrhosis

Answer 27

a. diarrhea

Question 28

Renin angiotensin aldosterone system regulates what electrolytes in the body? a. Ca b. Mg c. K d. Na

Answer 28

d. Na

Question 29

Which clinical condition hypercalcemia is seen? a. hypoalbuminemia b. malignancy c. Vit D deficiency d. renal disease

Answer 29

b. malignancy

Question 30

Hypomagnesemia causes hypokalemia because it promotes a. Gl loss b) cellular shift c. renal loss d. malabsorption

Answer 30

c. renal loss

Question 31

Diabetes insipidus increases serum sodium through. a. excess water loss b. cellular shift c. hyperventilion d. decrease water intake

Answer 31

a. excess water loss

Question 32

Parathyroid hormone-related proteins is increased in hypercalcemia associated with. a. acidosis b. vit D deficiency c. malignancy d. tenal tubular failure

Answer 32

c. malignancy

Question 33

Glass aluminum silicate selectivcly measures. a. K b. Na c. CI d. Ca

Answer 33

b. Na

Question 34

Electrolytes involve in cardiac muscle contraction EXCEPT. a. iCa b. K c. PO4 d. Mg

Answer 34

b. K

Question 35

Suggestive of metabolic alkalosis except a. BE +4 b. pH 7.55 c. AG: 12 mEq/L d. HCO3: 17 mEq/1

Answer 35

d. HCO3: 17 mEq/1