UA / Body Fluids

The following urine results were obtained on a 25 year old female:

pH: 7.0
color: yellow
appearance: cloudy
protein: 1+
glucose: negative
blood: small
SG: 1.015

Microscopic findings:
bacteria: many
WBC casts: 0-3/lpf
WBC: 30-40/hpf

These results are most compatible with:

A urinalysis performed on a 27 year old woman yields the following results:

SG: 1.008
pH: 5.0
protein: 2+
glucose: negative
ketones: negative
bilirubin: negative
blood: 3+
nitrite: negative
leukocytes: positive
urobil: 0.1 EU/dL

Microscopic findings:
WBC: 10-15/hpf
RBC: 30-55/hpf
hyaline casts: 5-7/lpf
RBC casts: 2-5/lpf
granular casts: 2-3/lpf
uric acid crystals: moderate

These findings are most consistent with:

Isothenuria is associated with a specific gravity which is usually:

To distinguish between a clump of WBCs and a WBC cast, it is important to observe:

The reason for performing a Clinitest on a newborn's urine is to check for:

A patient admitted following an accident involving massive crush injuries has the following urinalysis results:
color: red brown
clarity: clear
sg: 1.011
pH: 6.0
protein: 1+
blood: large
glucose: neg
ketones: neg
nitrite: neg
WBCs: neg
bilirubin: neg
urobil: neg

Microscopic 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:

A CSF was collected from a 5 year old with a fever, and 3 tubes were transported to the lab. Tube 1 had 50,000 RBC/ml and 48 WBC/mL. Tube 3 had 10 RBC/mL and 0 WBC/mL. What is the most likely explanation for the discrepancy?

A urine specimen with an elevated urobilinogen and a negative bilirubin may indicate:

Epithelial cell casts are most indicative of:

Microscopic analysis of a urine specimen yields a moderate amount of red blood cells in spite of a negative result for occult blood using a reagent strip. The technologist should determine if this patient has taken:

Which of the following contaminants has a dimpled center and will polarize?

A patient's urinalysis revealed a positive bilirubin and a decreased urobilinogen level. These results are associated with"

The principle of the reagent strip test for urine protein depends on:

The following urine results were obtained on a 18 year old woman in labor:

pH: 6.5
protein: 30.0 mg/dL
glucose: 250 mg/dL
ketones: negative
bilirubin: small
blood: negative
nitrite: negative
urobil: 0.1 EU/dL
SG: 1.025
copper recuction test: 1.0 g/dL

Which of the following is the most likely explanation for the patient's positive copper reduction test?

Pleural transudates differ from pleural exudates in that transudates have:

Urine samples should be examined within 1 hour of voiding because:

A 62 year old patient with hyperlipoproteinemia has a large amount of protein in his urine. Microscopic analysis yields moderate to many fatty, waxy granular and cellular casts. Many oval fat bodies are also noted. This is most consistent with:

Synovial fluid is analyzed with a polarizing microscope. Strongly birefringent needles are seen. This most likely indicates:

A sweat chloride >60mEq/L (60 mmol/L) is indicative of:

A technologist is having trouble differentiating between red blood cells, oil droplets and yeast cells on a urine microscopy. Acetic acid should be added to the sediment to: