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

Question

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

Edition 6ISBN: 0803641044

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

Edition 6ISBN: 0803641044

Exercise 54

A structure believed to be an oval fat body produced a Maltese cross formation under polarized light but does not

stain with Sudan III. The structure:

A. Contains cholesterol

B. Is not an oval fat body

C. Contains neutral fats

D. Is contaminated with immersion oil

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Answer 1

Oval fat bodies:

Oval fat bodies are renal tubular epithelial cells (RTE) with lipids.

• Renal Tubular Epithelial cells (RTE) absorbs lipids from glomerular filtrate of kidney, appears refractile that is referred as oval fat bodies

• Oval fat bodies seen in combination with fat droplets which are free floating.

• The urine sediment is stained with Sudan III or Oil Red O stains to detect presence of oval fat bodies in polarized microscopy

• Using polarized light in examining the urine sediment causes Maltese cross formation which contains cholesterol

• After applying stain (Sudan III), if the results are negative for fat in urine sediment, polarized light is used and cholesterol only present

Therefore, “cholesterol” is oval fat body formed in Maltese cross formation in polarized light which does not stain with Sudan III. Hence, the correct answer is option $<div class=answer> Oval fat bodies: Oval fat bodies are renal tubular epithelial cells (RTE) with lipids. • Renal Tubular Epithelial cells (RTE) absorbs lipids from glomerular filtrate of kidney, appears refractile that is referred as oval fat bodies • Oval fat bodies seen in combination with fat droplets which are free floating. • The urine sediment is stained with Sudan III or Oil Red O stains to detect presence of oval fat bodies in polarized microscopy • Using polarized light in examining the urine sediment causes Maltese cross formation which contains cholesterol • After applying stain (Sudan III), if the results are negative for fat in urine sediment, polarized light is used and cholesterol only present Therefore, “cholesterol” is oval fat body formed in Maltese cross formation in polarized light which does not stain with Sudan III. Hence, the correct answer is option .$ .