Honors Urinalysis Home
Middle Aged Woman
Case Study
Teenage Boy Case
Study
3. Would you expect to see the following formed element? Why or why not?
The formed element pictured is a
granular cast. In order to have a cast form, the patient must have
elevated dissolved solute, slowed urine flow, and acidic urine. While
there was
elevated protein in the patient, the urine pH was 8.0, which means the
urine was alkaline. For this reason, the granular cast above would
probably not
be found in this patient's urine.
A 35 year old woman went to the doctor complaining of fatigue, shortness of breath, and dark urine. Her skin was very pale, and the whites of her eyes were slightly yellow. She reported recently having a sinus infection which was treated with penicillin. Urinalysis results are:
| Color |
dark red/brown |
Protein |
100mg/dL (2+) |
Blood |
large |
| Appearance |
clear |
Glucose |
negative |
Urobilinogen |
12.0 EU |
| Sp.
Gravity |
1.020 |
Ketones |
negative |
Nitrite |
negative |
| pH |
8.0 |
Bilirubin |
negative |
Leukocyte |
negative |
Microscopic
amorphous 2+
hemosiderin granules present
Upon receiving the urinalysis results, the physician orders a blood test for haptoglobin which comes back less than 5 mg/dL (reference range = 26-185 mg/dL).