Author Question: What diagnostic test allows visualization of renal parenchyma and renal pelvis without exposure to ... (Read 31 times)

kellyjaisingh · **on:** Jun 28, 2018

What diagnostic test allows visualization of renal parenchyma and renal pelvis without exposure to external-beam radiation or radioactive isotopes?

a. Renal ultrasonography
b. Computed tomography
c. Intravenous pyelography
d. Voiding cystourethrography

Question 2

What urine test result is considered abnormal?

a. pH 4.0
b. WBC 1 or 2 cells/ml
c. Protein level absent
d. Specific gravity 1.020

tsternbergh47 · **Reply #1 on:** Jun 28, 2018

Answer to Question 1

ANS: A
The transmission of ultrasonic waves through the renal parenchyma allows visualization of the renal parenchyma and renal pelvis without exposure to external-beam radiation or radioactive isotopes. Computed tomography uses external radiation, and sometimes contrast media are used. Intravenous pyelography uses contrast medium and external radiation for radiography. Contrast medium is injected into the bladder through the urethral opening. External radiation for radiography is used before, during, and after voiding in voiding cystourethrography.

Answer to Question 2

ANS: A
The expected pH ranges from 4.8 to 7.8. A pH of 4.0 can be indicative of urinary tract infection or metabolic alkalosis or acidosis. Less than 1 or 2 white blood cells per milliliter is the expected range. The absence of protein is expected. The presence of protein can be indicative of glomerular disease. A specific gravity of 1.020 is within the anticipated range of 1.001 to 1.030. Specific gravity reflects level of hydration in addition to renal disorders and hormonal control such as antidiuretic hormone.