Final answer:
Renal calculi, also known as kidney stones, are considered an obstructive disorder when they grow large enough to block the ureter, causing pain and potential damage to the kidneys.
Step-by-step explanation:
Renal calculi, commonly known as kidney stones, are indeed considered an obstructive disorder. This is because these stones can block the ureter, leading to severe pain and potential damage to the kidney. The majority of kidney stones are composed of calcium oxalate crystals.
When a kidney stone grows large enough to obstruct the ureter, it can cause a condition known as renal colic, which results in extreme pain. Such blockages can decrease kidney function and lead to damaging the kidney if the stone is not passed or removed. Hence, the answer to whether renal calculi are considered an obstructive disorder is true.
In addition to calcium oxalate stones, there are other types of kidney stones. However, regardless of the type, if they reach a sufficient size, they can cause obstruction. This is typically at least 2-3 millimeters in diameter. Symptoms of a blockage include pain and may also present with nausea, vomiting, and hematuria (bloody urine).
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