What is the most accurate indicator of fluid loss or gain in acutely ill patients?
Daily weight.
Intake and output.
Serum osmolality.
Urine specific gravity.
The Correct Answer is A
The correct answer is choice A. Daily weight.
According to MDCalc, daily weight is the most accurate indicator of fluid loss or gain in acutely ill patients, as it reflects changes in total body water.
A weight change of 1 kg corresponds to a fluid change of approximately 1 L.
Choice B is wrong because intake and output measurements can be inaccurate or incomplete, and do not account for insensible fluid losses.
Choice C is wrong because serum osmolality reflects the concentration of solutes in the blood, not the volume of fluid.
Choice D is wrong because urine specific gravity reflects the concentration of solutes in the urine, not the volume of fluid.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.5"]
Explanation
The correct answer is 1.5 tablets.
To find the number of tablets, use the formula: (desired dose / available dose) x 1 tablet.
In this case, desired dose = 0.015 grams, and available dose = 10 mg.
However, these units are not the same, so they need to be converted to a common unit.
One gram is equal to 1000 mg, so 0.015 grams is equal to 15 mg.
Plug these values into the formula: (15 mg / 10 mg) x 1 tablet = 1.5 tablets.
However, since the instructions say to round to the nearest tenth for adult clients, the final answer is 1.5 tablets.
Correct Answer is C
Explanation
Angiotensin II is a hormone that stimulates the adrenal cortex to release aldosterone. Aldosterone is a hormone that helps regulate blood pressure by increasing the reabsorption of sodium and water and the excretion of potassium by the kidneys.
Choice A is wrong because renin is not a hormone but an enzyme that catalyzes the conversion of angiotensinogen to angiotensin I1.
Choice B is wrong because angiotensin I is an inactive precursor of angiotensin II that is converted by angiotensin-converting enzyme (ACE) in the lungs.
Choice D is wrong because antidiuretic hormone (ADH) is a hormone that regulates water balance by increasing the reabsorption of water by the kidneys, but it does not affect aldosterone secretion.
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