Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger

Exercise 1

A 14-year-old boy who has recently recovered from a sore throat develops edema and hematuria. Significant laboratory results include a BUN of 30 mg/dL (normal 8 to 23 mg/dL) and a positive group A streptococcal antibody test. Results of a urinalysis are as follows:

Microscopic:

100 RBCs/hpf—many dysmorphic forms

5–8 WBCs/hpf

0–2 granular casts/lpf

0–1 RBC casts/lpf

a. What disorder do these results and history indicate?

b. What specific characteristic was present in the organism causing the sore throat?

c. What is the significance of the dysmorphic RBCs?

d. Are the WBCs significant? Why or why not?

e. What is the expected prognosis of this patient?

f. If the above urinalysis results were seen in a 5-year-old boy who has developed a red, patchy rash following recovery from a respiratory infection, what disorder would you suspect?

Step 1 of 6

a.

The history and results indicates acute glomerulonephritis.

• The disease associated with glomerular membrane damage

• The symptoms include hematuria, oliguria, fatigue, edema, fever and hypertension

• Symptoms generally occur in young adults and children resulted from group A streptococcus strains infection