Final answer:
Yeast in the urine sediment is typically an abnormal finding and may indicate a urinary infection. While epithelial cells, a few casts, and red blood cells can be normal findings, yeast presence suggests an infection like candidiasis. Option d.
Step-by-step explanation:
The presence of certain elements in urine sediment can be normal or abnormal, depending on the substance and its quantity. Epithelial cells, a few casts, and a few red blood cells are generally considered normal findings in urine sediment.
Epithelial cells slough off from the lining of the urinary tract; a small number of casts, which are tube-shaped proteins that may form in the kidney tubules, can be present in healthy individuals; and a few red blood cells can occasionally be seen due to benign causes like exercise.
However, the presence of yeast in urine sediment is generally an abnormal finding and can indicate an infection such as a urinary tract infection (UTI) or a systemic infection like candidiasis.
Other investigations of urine might reveal proteins, pus cells, bacteria, cellular casts, and crystals, which, if found in significant numbers, may suggest an underlying condition such as kidney disease, infection, or metabolic issues.
Option d.