Question

A 20-year-old female college student with a sore throat is seen in the student health service. A throat swab is cultured and reported positive for group A b-hemolytic streptococci. She is treated with an intramuscular injection of penicillin. Two weeks later, she wakes up in the morning and finds that she has decreased urine volume, and her urine is dark red. She also has a fever and swelling in her feet. She returns to the student health service, where urine is collected for urinalysis. The following urinalysis results were obtained.

Physical Appearance

Color: Red

Transparency: Cloudy

Chemical Screening                                                    Microscopic Examination

pH: 6.0                                                                   Red blood cells: 10-25/hpf;

Specific gravity: 1.025                                                   dysmorphic RBC forms present

Protein (reagent strip): 100 mg/dL                          White blood cells: 0-2/hpf

Blood: Large                                                           Casts: 2-5 red blood cell casts/lpf

Nitrite: Negative                                                     Crystals: Moderate amorphous urates

Leukocyte esterase: Negative

Glucose: Negative

Ketones: Trace

Bilirubin: Negative

Urobilinogen: Normal

Critical Thinking Questions

1. Based on the laboratory data, what is a likely diagnosis for this patient?

2. How does this patient’s condition differ from the conditions of other patients who might have similar laboratory findings?

Answer 1

here, 20 year old female college student suffered sore throat and reported positive for group a b-hemolytic streptococci bacteria and after 2 week she get non-suppurative complication in which she has fever, swell feet and low urine output

0 I Based on the laboratory be diagnosis of ACUTE GLOMERULONEPHRITIS for data, it is likely to POST STREPTOCOCCAL this patient. © Differential diagnosis for this patient's condition which some what similar laboratory finding like that of UTI i.e. Urinary Tract Infection is that for UTI nitrite test is positive while in this laboratory finding we find nitrite test to be negative.