Are hyaline casts in urine normal?

Very few casts are seen in the urine of a person without renal disease. A common exception is hyaline casts, which may often be seen in healthy patients or can be present after strenuous exercise or diuretic use. A significant number of urinary casts usually indicates the presence of renal disease.

What does the presence of casts in urine mean?

Fatty casts are seen in people who have lipids in urine. This is most often a complication of nephrotic syndrome . Granular casts are a sign of many types of kidney diseases. Red blood cell casts mean there is a microscopic amount of bleeding from the kidney. They are seen in many kidney diseases.

What is the normal range for casts in urine?

Normally, very few casts are seen in urine examinations without renal dysfunction. Hyaline casts are the most frequently observed, and zero to two casts per low-power field is considered normal.

How do you lower hyaline casts?

Reduced lighting is essential to see hyaline casts in urine sediment preparations. Lighting can be reduced by lowering the substage condenser (or close the iris diaphragm). Hyaline casts are far easier to visualize using phase contrast microscopy, but this is not available on standard microscopes.

Should I worry about hyaline casts?

Are hyaline casts dangerous? Hyaline casts are typically not considered a dangerous finding. Unlike hyaline casts, other types of urinary casts are generally associated with kidney disease. For instance, epithelial cell casts reflect severe damage and death of the tubule cells, which is also known as tubular necrosis.

Which of the following casts is most indicative of severe renal disease?

Granular casts While most often indicative of chronic renal disease, these casts, as with hyaline casts, can also be seen for a short time following strenuous exercise.

What does hyaline cast mean?

Casts are clusters of urinary sediment elements (red blood cells, white blood cells, fat bodies, etc.) wrapped in a protein matrix. Cast formation necessarily occurs in the kidney tubules, and the the contents of the casts indicate the nature of the abnormalities occurring in the kidney itself.

Which condition promotes the formation of casts in the urine?

The following factors promote the formation of casts in the kidney: Larger than normal amounts of plasma proteins entering the tubules. Decreased pH. Decreased urinary flow rate.

How do I read my urine test results?

Normal values are as follows:

1. Color – Yellow (light/pale to dark/deep amber)
2. Clarity/turbidity – Clear or cloudy.
3. pH – 4.5-8.
4. Specific gravity – 1.005-1.025.
5. Glucose – ≤130 mg/d.
6. Ketones – None.
7. Nitrites – Negative.
8. Leukocyte esterase – Negative.

What is hyaline substance?

In histopathological medical usage, a hyaline substance appears glassy and pink after being stained with haematoxylin and eosin—usually it is an acellular, proteinaceous material. An example is hyaline cartilage, a transparent, glossy articular joint cartilage.

What are some examples of abnormal findings in a urinalysis?

Cloudiness or an unusual odor can indicate a problem, such as an infection. Protein in urine can make it appear foamy. Blood in the urine can make it look red or brown. Urine color can be influenced by what you’ve just eaten or by certain drugs you’re taking.