Exam 3: Renal Function

An increase in the plasma level of Beta₂ microglobulin correlates with decreased glomerular filtration.

Substances removed from the blood by tubular secretion include primarily:

The extent to which the kidney concentrates the glomerular filtrate can be determined by measuring:

Measurement of urine osmolality is a more accurate measure of renal concentrating ability than specific gravity because:

Decreased production of aldosterone:

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

A physician is treating a patient exhibiting symptoms of impaired renal function following a massive hemorrhage.The physician orders a serum sodium and a PAH clearance test.The patient has a serum PAH of 1.0 mg/dL,urine PAH of 200 mg/dL,and a urine volume of 240 mL in 2 hours.The serum sodium is decreased. -Based on the information provided,would it be better for this patient to have an increased or decreased serum renin level?

Substances that can interfere with serum osmolality readings include all of the following except:

To determine the amount of water that must be cleared to produce urine with the same osmolality as the ultrafiltrate,one should perform:

Given the following information,calculate the patient's free water clearance: urine volume-360 mL in 12 hours,urine osmolality-1400 mOsm,and plasma osmolality-275 mOsm

Blood pressure within the glomerulus varies directly with systemic blood pressure.

What is the physical property measured by a vapor-pressure osmometer?

A technical error that could cause a discrepancy between freezing-point and vapor-pressure osmometry readings is:

Following fluid deprivation,a patient has a serum osmolality of 276 mOsm and a urine osmolality of 1000 mOsm.This patient:

A patient with insufficient production of ADH would have which of the following results?

Increased production of aldosterone causes:

PAH is secreted by the:

Aldosterone regulates sodium reabsorption in the:

The specific gravity of the glomerular ultrafiltrate is:

A patient showing symptoms of impaired renal function has a battery of tests performed.Results are: Serum creatinine: 2.0 mg/dL Urine creatinine: 150 mg/dL Serum osmolality: 270 mOsm Urine osmolality: 100 mOsm 24-hour urine volume: 2000 mL -Based on the information provided,can this patient be safely given a nephrotoxic antibiotic?