NEET PG DENTAL EXAM

HISTOLOGY

URINARY SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Of the following substances, which are not usually present in urine?
A
urea, phosphorus
B
glucose, protein
C
ketone, sodium
D
potassium, creatinine
Explanation: 

Detailed explanation-1: -Usually, glucose, ketones, protein, and bilirubin are not detectable in urine. The following are not normally found in urine: Hemoglobin.

Detailed explanation-2: -Protein is present in the blood; healthy kidneys should only filter tiny (trace) amounts into the urine as most protein molecules are too large for the filters (glomeruli). It is not usual to lose protein in the urine. When this does happen it is known as ‘Proteinuria’.

Detailed explanation-3: -Usually, the urine does not contain sugar. This is because the kidneys reabsorb it from the blood as it passes through the body.

Detailed explanation-4: -Urine has large amounts of nitrogen, phosphorus, and potassium. Nitrogen content in urine is high, mostly in urea, which makes up more than 50 percent of the total organic acids. This includes urea from protein metabolism, sodium and potassium both of which come from food.

There is 1 question to complete.