What is the normal RBC to WBC ratio?

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What is the normal RBC to WBC ratio?

RBCs greatly outnumber WBCs in peripheral blood. In a healthy adult, red cells are about 4.5–6.0 x 10^12/L, while white cells are roughly 4–11 x 10^9/L, giving a typical RBC to WBC ratio in the hundreds to the thousands. A commonly used figure for the normal ratio is around 600:1, which matches the usual counts seen in practice. The other options are outside this common range: 60:1 would imply a relatively higher number of WBCs than normal, 6:1 is far too low, and 6000:1 would indicate an even larger imbalance in favor of RBCs.

RBCs greatly outnumber WBCs in peripheral blood. In a healthy adult, red cells are about 4.5–6.0 x 10^12/L, while white cells are roughly 4–11 x 10^9/L, giving a typical RBC to WBC ratio in the hundreds to the thousands. A commonly used figure for the normal ratio is around 600:1, which matches the usual counts seen in practice. The other options are outside this common range: 60:1 would imply a relatively higher number of WBCs than normal, 6:1 is far too low, and 6000:1 would indicate an even larger imbalance in favor of RBCs.

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