URINALYSIS AND BODY FLUIDS UPDATED EXAMS
SCRIPT QUESTIONS AND ANSWERS SURE A+
✔✔A patient admitted following an accident involving massive crush injuries has the
following urinalysis results:
color: red brown
clarity: clear
specific gravity: 1.011
pH: 6.0
protein: 1+
blood: large
glucose: negative
ketones: negative
nitrite: negative
leukocytes: negative
bilirubin: negative
urobilinogen: negative
microsctopic findings:
renal tubular epithelial: 5-10
renal tubular cell casts: 1-2
The discrepancy between the large amount of blood and the absence of RBCs on
microscopy is caused by ________. - ✔✔the presence of myoglobin in the urine
specimen
, ✔✔All casts typically contain ______. - ✔✔Tamm-Horsfall glycoprotein
✔✔Hyaline casts are usually found _______. - ✔✔under subdued light
✔✔Which cast is most likely to be found in healthy people? - ✔✔hyaline
✔✔Which cast is most indicative of end stage renal disease? - ✔✔waxy
✔✔A technologist performed a STAT microscopic urinalysis and reported the following:
WBC: 10-13
RBC: 2-6
hyaline casts: 5-7
bacteria: 1+
The centrifuge tube was not discarded and the urine sediment was reevaluated
microscopically 5 hours after the above results were reported. A second technologist
reported the same results, except 2+ bacteria and no hyaline casts were found. The
most probable explanation for the second technologist's findings is _____. - ✔✔casts
dissolved due to increase in urine pH
✔✔What aids in differentiating a spherical transitional cell from a round renal tubular
cell? - ✔✔eccentrically-placed nucleus in the renal cell
✔✔The urine microscopic constituents that best differentiate between cystitis and
pyelonephritis are ______. - ✔✔WBC casts
✔✔Epithelial cell casts are most indicative of ______. - ✔✔tubular necrosis
✔✔Granular casts found in the urine of a football player admitted to the hospital with a
broken leg occurring during the game can be the result in ______. - ✔✔strenuous
exercise
✔✔Which cast most frequently appears to have a brittle consistency? - ✔✔waxy
✔✔To distinguish between a clump of WBCs and a WBC cast, it is important to observe
______. - ✔✔the presence of a cast matrix
✔✔Spherical urothelial cells may be confused with ______. - ✔✔renal tubular epithelial
cells
✔✔Prior to reporting a red blood cell cast, it is important to observe ______. - ✔✔free-
floating RBCs
SCRIPT QUESTIONS AND ANSWERS SURE A+
✔✔A patient admitted following an accident involving massive crush injuries has the
following urinalysis results:
color: red brown
clarity: clear
specific gravity: 1.011
pH: 6.0
protein: 1+
blood: large
glucose: negative
ketones: negative
nitrite: negative
leukocytes: negative
bilirubin: negative
urobilinogen: negative
microsctopic findings:
renal tubular epithelial: 5-10
renal tubular cell casts: 1-2
The discrepancy between the large amount of blood and the absence of RBCs on
microscopy is caused by ________. - ✔✔the presence of myoglobin in the urine
specimen
, ✔✔All casts typically contain ______. - ✔✔Tamm-Horsfall glycoprotein
✔✔Hyaline casts are usually found _______. - ✔✔under subdued light
✔✔Which cast is most likely to be found in healthy people? - ✔✔hyaline
✔✔Which cast is most indicative of end stage renal disease? - ✔✔waxy
✔✔A technologist performed a STAT microscopic urinalysis and reported the following:
WBC: 10-13
RBC: 2-6
hyaline casts: 5-7
bacteria: 1+
The centrifuge tube was not discarded and the urine sediment was reevaluated
microscopically 5 hours after the above results were reported. A second technologist
reported the same results, except 2+ bacteria and no hyaline casts were found. The
most probable explanation for the second technologist's findings is _____. - ✔✔casts
dissolved due to increase in urine pH
✔✔What aids in differentiating a spherical transitional cell from a round renal tubular
cell? - ✔✔eccentrically-placed nucleus in the renal cell
✔✔The urine microscopic constituents that best differentiate between cystitis and
pyelonephritis are ______. - ✔✔WBC casts
✔✔Epithelial cell casts are most indicative of ______. - ✔✔tubular necrosis
✔✔Granular casts found in the urine of a football player admitted to the hospital with a
broken leg occurring during the game can be the result in ______. - ✔✔strenuous
exercise
✔✔Which cast most frequently appears to have a brittle consistency? - ✔✔waxy
✔✔To distinguish between a clump of WBCs and a WBC cast, it is important to observe
______. - ✔✔the presence of a cast matrix
✔✔Spherical urothelial cells may be confused with ______. - ✔✔renal tubular epithelial
cells
✔✔Prior to reporting a red blood cell cast, it is important to observe ______. - ✔✔free-
floating RBCs
