Lead poisoning inhibits enzymes involved in:
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3%
A. Fat metabolism
21%
B. Protein synthesis
58%
C. Haem synthesis
12%
D. Glycogenolysis
6%
E. Collagen formation
Chromium functions mainly as:
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11%
A. Antioxidant
73%
B. Insulin cofactor
14%
C. Clotting factor
3%
D. Oxygen carrier
0%
E. Hormone
Keshan’s disease is associated with deficiency of:
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56%
A. Selenium
9%
B. Zinc
31%
C. Copper
3%
D. Iron
0%
E. Chromium
Wilson’s disease is associated with excess accumulation of:
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6%
A. Zinc
15%
B. Selenium
65%
C. Copper
3%
D. Chromium
12%
E. Manganese
Zinc deficiency may cause:
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17%
A. Hyperglycemia
40%
B. Alopecia
20%
C. Hypercalcemia
9%
D. Jaundice
14%
E. Polycythemia
Vitamin K is essential for synthesis of:
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25%
A. Hemoglobin
13%
B. Albumin
9%
C. Insulin
53%
D. Prothrombin
0%
E. Glucagon
Which vitamin deficiency causes rickets and osteomalacia?
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4%
A. Vitamin A
57%
B. Vitamin D
18%
C. Vitamin E
11%
D. Vitamin K
11%
E. Vitamin B6
Rhodopsin contains opsin combined with:
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0%
A. Vitamin D
24%
B. Vitamin K
14%
C. Vitamin E
59%
D. Vitamin A
3%
E. Vitamin C
Which membrane is called “slow membrane” by Darrow?
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0%
A. Plasma membrane
3%
B. Capillary membrane
90%
C. Membrane separating ICF from tissue fluid
0%
D. Basement membrane
6%
E. Glomerular membrane
Which condition may cause sodium depletion?
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15%
A. Cholera
45%
B. Diabetes mellitus
24%
C. Hypertension
6%
D. Asthma
9%
E. Hyperthyroidism
Survival is rare if blood pH falls below:
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11%
A. 7.2
17%
B. 7.0
69%
C. 6.8
3%
D. 6.5
0%
E. 6.0
Salicylate overdose commonly causes:
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7%
A. Respiratory acidosis
36%
B. Respiratory alkalosis
39%
C. Metabolic acidosis only
14%
D. Water depletion
4%
E. Hyperkalemia
Hyperventilation in metabolic acidosis leads to:
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12%
A. Increased pCO2
52%
B. Reduced elimination of CO2
12%
C. Increased bicarbonate
18%
D. Decreased pCO2
6%
E. Increased oxygen demand
Which vitamin deficiency may cause sideroblastic anemia?
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9%
A. Vitamin B1
65%
B. Vitamin B6
12%
C. Vitamin C
6%
D. Vitamin E
9%
E. Vitamin K
Obstruction of the common bile duct may cause:
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44%
A. Acute pancreatitis
3%
B. Asthma
32%
C. Nephrotic syndrome
9%
D. COPD
12%
E. Iron deficiency anemia
Renin is produced by the:
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8%
A. Bowman’s capsule
5%
B. Loop of Henle
3%
C. Collecting duct
82%
D. Juxtaglomerular apparatus
3%
E. Proximal tubule
Isosmotic transport occurs mainly in the:
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12%
A. Distal tubules
6%
B. Collecting ducts
64%
C. Proximal tubules
12%
D. Glomeruli
6%
E. Renal pelvis
Uraemia is usually accompanied by elevated:
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3%
A. Calcium concentration
23%
B. Albumin concentration
69%
C. Creatinine concentration
0%
D. Glucose concentration
6%
E. Hemoglobin concentration
Hyperkalaemia is commonly associated with:
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83%
A. Reduced GFR with normal tubular function
3%
B. Vitamin D deficiency
6%
C. Respiratory alkalosis
8%
D. Hyperventilation
0%
E. Hypoglycemia
Which urine finding occurs in reduced GFR with normal tubular function?
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5%
A. Glycosuria
24%
B. Aminoaciduria
54%
C. Oliguria
14%
D. Alkaline urine
3%
E. Phosphaturia