Question

which of the following descriptions of a blood sample is most accurate?
multiple choice
white blood cells, usually much smaller than red blood cells, are represented in much lower numbers than platelets.
the ratio of red blood cells to white blood cells would be about 1:1.
most of the cells that can be identified are red blood cells, with much fewer white blood cells.
platelets are usually present in higher numbers than red blood cells, but lower numbers than white blood cells.

Explanation:

• White blood cells are larger than red blood cells, so the first option is incorrect.
• The ratio of red blood cells to white blood cells is about 700:1, not 1:1, so the second option is incorrect.
• Platelets are present in lower numbers than red blood cells, so the fourth option is incorrect.
• In a blood sample, most of the cells that can be identified are red blood cells (erythrocytes), and white blood cells (leukocytes) are much fewer.

Answer:

Most of the cells that can be identified are red blood cells, with much fewer white blood cells.