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WorksheetsMCQ in water and electrolyte balance
Total questions: 10
Worksheet time: 5mins
The principal cation in extracellular fluid
sodium
potassium
calcium
magnesium
A decrease in serum sodium may occur in
Adrenocotical insufficiency
Hypoparathyroidism
Hyperparathyroidism
Thyrotoxicosis
The metabolism of sodium is regulated by the hormone
insulin
Aldosterone
PTH
Somatostatin
The normal pH of the blood is
7.1
7.2
7.0
7.4
The normal concentration of potassium in human plasma in meq/I is about
1
2
3
5
Diabetes insipidus results from
Decreased insulin secretion
Decreased ADH secretion
Decreased aldosterone secretion
Unresponsiveness of osmoreceptors
Buffering action of haemoglobin is mainly due to
Glutamine residues
Arginine residues
Histidine residues
Lysine residue
At pH 7.4, the ratio of bicarbonate:dissolved CO2 is
1:1
10:1
20:1
40:1
Cobalt is a constituent of
Folic acid
vitamin B12
Niacin
biotin
Normal anion gap in plasma is about
5meq/l
15meq/l
25meq/l
40meq/l
