Urine Crystals 3

Question 1

Which urine crystal is an indication of renal tubular dysfunction and/or urolithiasis

Answer 1

Cystine

Question 2

Which urine crystals are golden-brown, round, +/- radial striations

Answer 2

Melamine toxicity

Question 3

Which urine crystal is associated with diets contaminated with melamine or cyanic acid

Answer 3

Melamine toxicity

Question 4

Which urine crystal will you see in ethylene glycol toxicity

Answer 4

Calcium oxalate

Question 5

Normal specific gravity value

Answer 5

1.025- 1.050

Question 6

Isothenuria

Answer 6

Low concentration
1.012- 1.008

Question 7

Hyposthenuria

Answer 7

Unable to concentrate
Less than 1.008

Question 8

When will you get positive glucose on a urine dipstick

Answer 8

When the Renal threshold of glucose is exceeded
170mg/ dl

Question 9

What does protein on a urine dipstick indicate

Answer 9

Urinary tract disease (esp. renal)

Question 10

When will you find ketones on a urine dipstick

Answer 10

Increased catabolism of fatty acids