Case Study 1.
For years, a 55-year-old white female has had significant trouble with keeping her
diabetes mellitus and hypertension under control.  Recently, she arrived at the
Emergency Room with complaints of severe weakness, nausea and vomiting.

Blood tests show that the patient has azotemia, is anemic, and has a GFR of 18 ml/min.

The patients urinalysis results are as following:

Multistix:
Color:  yellow Glucose:  100 mg/dL Protein:  300 mg/dL
Appearance:  slightly hazy Bilirubin:  negative Urobilinogen:  0.2 mg/dL
Specific gravity:  1.010 Ketone:  80 mg/dL Nitrite:  negative
pH:  6.5 Blood:  negative Leukocyte:  negative

Microscopic:
15-20 granular casts/hpf. 10-20 WBCs/lpf
0-2 WBC casts/hpf 2-5 squamous epithelial cells.
2-5 hyaline casts/hpf 0-2 transitional epithelial cells.
1+ amorphous

Link to questions:

 Question 1
 Question 2
Question 3
 Question 4
 Question 5
 Question 6
 Question 7
 Question 8

Here is a characteristic microscopic view of the urine specimen at 200x magnification:
 

case study 1 image
Click on the image to view the cellular cast magnified.


Question 1.  To what condition do these lab results point:
    a.  Acute renal failure.
    b.  Chronic renal failure.
    c.  Nephrotic syndrome.
    d.  Hepatitis.

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Question 2.  What one stix result is the most helpful in making this diagnosis:
    a.  Glucose.
    b.  Ketone.
    c.  Protein.
    d. Leukocyte.

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Question 3.  What microscopic results help you to make this diagnosis:
    a.  WBCs.
    b.  Squamous epithelial cells.
    c.  Hyaline, cellular and granular casts.
    d.  Amorphous.

View picture
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Question 4.  What is a technical discrepancy in this patient's urinalysis results.:
    a.  Blood on Multistix and microscopic.
    b.  Glucose and specific gravity.
    c.  Leukocytes on Multistix and microscopic.
    d. Urobilinogen on Multistix and microscopic.

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Question 5.  The patient's specific gravity for her first morning specimen was 1.010.
    What would you expect her afternoon urine specimen specific gravity to be with the given diagnosis:
    a.  1.035.
    b.  1.025.
    c.  1.010.
    d.  1.003.

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Question 6.  What other symptoms would you expect in a patient with proteinuria:
    a.  Jaundice.
    b.  Edema.
    c.  Rash.
    d.  Oliguria.

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Question 7.  What Multistix results point to uncontrolled diabetes mellitus:
    a.  Glucose.
    b.  Leukocytes.
    c.  Protein.
    d.  Ketone.

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Question 8.  Which of the following conditions does the patient have:
    a.  Isosthenuria.
    b.  Myoglobinuria.
    c.  Diabetic Nephropathy.
    d.  Pyuria.
    e.  Hematuria
    f.   Porphyrinuria.

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