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Urinalysis and Body Fluids Review Questions And Answers
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Urinalysis and Body Fluids Review Questions And Answers The specific gravity of the glomerular ultrafiltrate is: 1.01 All of the following are reabsorbed from the glomerular filtrate by active transport glucose, sodium and amino acids For active transport to occur, a chemical: must combine ...

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  • October 26, 2024
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  • 2024/2025
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Urinalysis and Body Fluids Review Questions
And Answers

The specific gravity of the glomerular ultrafiltrate is: 1.01




All of the following are reabsorbed from the glomerular filtrate by active transport

glucose, sodium and amino acids




For active transport to occur, a chemical: must combine with a carrier protein to create

electrochemical energy




Water is passively reabsorbed in all parts of the nephron except the: ascending loop of

Henle




Most of the sodium filtered by the glomerulus is reabsorbed in the: proximal convoluted

tubule




The enzyme renin is produced by the kidney: in response to low plasma sodium levels

,Urinalysis and Body Fluids Review Questions
And Answers
Concentration of the tubular filtrate by the countercurrent mechanism is dependent on all of the

following high salt concentration in the medulla, water-impermeable walls of the

ascending loop of Henle, reabsorption of sodium and chloride from the ascending loop of Henle




The osmotic gradient of the medulla: affects sodium reabsorption in the proximal

convoluted tubule




Aldosterone regulates sodium reabsorption in the: distal convoluted tubule




Decreased production of vasopressin: produces a high urine volume




Production of antidiuretic hormone is controlled by the: state of body hydration




Substances removed from the blood by tubular secretion include primarily: protein-bound

substances, hydrogen, and potassium




Kidneys with impaired production of ammonia will consistently produce urine with a:

high pH

,Urinalysis and Body Fluids Review Questions
And Answers

To enhance the excretion of hydrogen ions, ammonia is produced by the cells of the: distal

convoluted tubule




To maintain the buffering capacity of the blood, hydrogen ions combine with: filtered

bicarbonate ions




Clearance tests used to determine the glomerular filtration rate must measure substances that are:

neither reabsorbed or secreted by the tubules




Results for glomerular filtration tests are reported in: milliliters per minute




All of the following are endogenous clearance test substances urea, creatinine, and beta 2

microglobulin




Performing a clearance test using radionucleotides eliminates the need to collect urine,

provides visualization of the filtration

, Urinalysis and Body Fluids Review Questions
And Answers
If a substance is completely filtered by the glomerulus and then completely reabsorbed by the

tubules, the clearance of that substance will be: zero




The most routinely used laboratory method for measuring the glomerular filtration rate is the:

creatinine clearance




The most common error in measuring the glomerular filtration rate using the creatinine clearance

is: inaccurate timing of urine collection




All of the following could cause falsely decreased creatinine clearance results

consumption of a heavy meat during urine collection, noncreatinine plasma substances

reacting in the chemical test, maintaining urine specimens at room temperature




The body surface of the average person in square meters is: 1.73




An additional calculation that may be required in the creatinine clearance is a correction for:

body size

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