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Question

Kidney crystals are solid clusters of

A
Calcium nitrate and uric acid
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B
Calcium phosphate and uric acid
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C
Calcium carbonate and uric acid
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D
Calcium metabisulfite and uric acid
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Solution

The correct option is B Calcium phosphate and uric acid
A kidney stone is a solid cluster made up of tiny crystals.
Types of kidney stones are as follows:
i) Calcium oxalate stones are approximately 85 percent of kidney stones are composed of calcium, usually forming from excess calcium in the urine (hypercalciuria). The most common type of calcium stone is chemically bound with oxalate. Calcium oxalate stones are by far the most common.
ii) Calcium phosphate stones are linked with a specific metabolic or hormonal disorder, such as hyperparathyroidism or renal tubular acidosis.
iii) Uric acid stones is a by product of protein metabolism. Uric acid stones are linked to eating a high-protein diet. They can occur as a result of gout, genetic factors and disorders related to chemotherapy treatment.
iv) Cystine stones can form in people who have cystinuria, a hereditary disorder that causes the kidneys to excrete large amounts of certain amino acids.
v) Struvite stones are related to a urinary tract infection caused by a specific form of bacteria. They can grow very large and can block the kidneys, ureters or bladder outlet.
Therefore, the correct answer is option B.

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