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Clin Path I
Quiz #1 - Urinalysis
| Question | Answer |
|---|---|
| Urine "Coca-Cola" colored | Acute Glomerulonephritis |
| Urine odor causes: Ammonia | Old sample, retention |
| Urine odor causes: Fruity | Ketones - diabetes is common |
| Urine odor causes: Stale Water | Kidney disease |
| Urine odor causes: Foul | Bacterial Infection |
| Urine Normal and Abnormal: Specific Gravity | N: 1.003-1.030 Ab: low - diabetes insipidus, high - diabetes mellitus, fixed (1.010) - kidney disease |
| Urine Normal and Abnormal: pH | N: 4.5 - 8 Ab: low - fever and high protein, high - UTI |
| Urine Normal and Abnormal: protein | normally none, possible renal disease if present, sensitive to albumin - Also, orthostatic proteinuria |
| Urine Normal and Abnormal: Glucose | renal threshold: 180 mg/ml |
| Urine Normal and Abnormal: Ketones | N: none Ab: Diabetes Mellitus *type I* |
| Urine Normal and Abnormal: Blood | N: none Ab: Vitamin C possible false negative |
| Urine Normal and Abnormal: Leukocyte esterase | positive indicates presence of inflammatory disease |
| Urine Normal and Abnormal: Nitrite | Ab: gram negative bacteria that can reduce nitrate, 4 hours of retention needed |
| Urine Normal and Abnormal: Bilirubin | Presence indicates liver disease or biliary obstruction, only *conjugated* bilirubin in urine |
| Urine Normal and Abnormal: Urobilinogen | Increased amounts due to hemolytic anemias and liver dysfunction; rapidly oxidizes in air |
| Urine Microscopy: Hematuria | significant: 3 RBC/high power field *painless hematuria is bad* Smoking hx: bladder cancer |
| Urine Normal and Abnormal: Pyuria | UTI, others |
| Urine Normal and Abnormal: Casts - Hyaline - Waxy - RBC - WBC | Hyaline - strenuous exercise Waxy - advanced kidney failure *RBC - acute glomerulonephritis *WBC - acute pyelonephritis |
| Urine Normal and Abnormal: Crystals - acidic - alkaline | normal in acidic: calcium oxalate normal in alkaline: amorphous phosphates |
| Urine Normal and Abnormal: yeast | differentiate from RBCs |