What is the term for an excess of urea and other nitrogenous wastes in the blood as a result of kidney insufficiency?
Azotemia.
Uremia.
Anuria.
Oliguria.
The Correct Answer is B
Uremia is a condition where there is an excess of urea and other nitrogenous wastes in the blood, usually excreted by the kidneys into the urine. It occurs when the kidneys stop filtering toxins out through your urine and can be a sign of end-stage renal (kidney) disease.
Choice A is wrong because azotemia is the buildup of nitrogen waste products in the blood, not urea.
Choice C is wrong because anuria is the absence or reduction of urine output.
Choice D is wrong because oliguria is the low output of urine.
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Related Questions
Correct Answer is B
Explanation
Oliguria is the term for a urine output less than 400 mL per day. This can indicate dehydration, kidney failure, urinary obstruction, or other conditions that affect urine production.
Choice A is wrong because anuria is the term for a urine output less than 100 mL per day.
This is a more severe form of oliguria and can indicate complete kidney failure or urinary obstruction.
Choice C is wrong because polyuria is the term for a urine output more than 3000 mL per day.
This can indicate diabetes mellitus, diabetes insipidus, diuretic use, or excessive fluid intake.
Choice D is wrong because dysuria is the term for painful or difficult urination.
This can indicate urinary tract infection, kidney stones, bladder inflammation, or other conditions that affect the urinary tract.
Correct Answer is A
Explanation
Sodium is the major extracellular electrolyte in the body.
It is responsible for maintaining the extracellular fluid volume, and also for regulation of the membrane potential of cells.
Sodium is exchanged along with potassium across cell membranes as part of active transport.
Choice B is wrong because potassium is mainly an intracellular ion.
It is important for nerve and muscle function, but it is not the predominant electrolyte in the extracellular fluid.
Choice C is wrong because calcium is not the major electrolyte in the extracellular fluid.
Calcium is mostly found in bones and teeth, where it forms a mineral reserve with phosphate.
Calcium also plays a role in muscle contraction, blood clotting, and enzyme activity.
Choice D is wrong because magnesium is not the major electrolyte in the extracellular fluid.
Magnesium is mostly found in bones, where it helps to stabilize the structure of ATP2.
Magnesium also participates in enzyme reactions, nerve and muscle function, and protein synthesis.
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