Common elements found in intracellular fluid are:

b
This is the only correct answer as helium and barium
are not present naturally in the human body.

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a
Normal urine specific gravity is 1.00501.030 and
osmolarity between 500 and 1200 mOsm/kg. In states of
volume deficit, urine SG can be elevated and the osmolality high, usually accompanied by a decrease in urine output
(except in diabetic ketoacidosis). In volume excess, urine
tends to be dilute with a low SG and osmolality.

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b
Diffusion is the movement of a substance, or solute such
as sodium or oxygen, from an area of greater concentration
to an area of lower concentration, resulting in the eventual
even distribution of the substance.

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a
When a specimen of sputum is required it is best col
lected early in the morning before any food or fluid is given,
as this ensures that there is an accumulation of secretions to
be obtained. Sputum for laboratory testing should be free of
saliva and food particles.

Ahaa