Electrical impedance methods count platelets in which size range?

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Multiple Choice

Electrical impedance methods count platelets in which size range?

Explanation:
Electrical impedance counts cells by their volume, using size gates to separate different cell types. Platelets are the smallest blood cells, with volumes roughly 2 to 20 femtoliters. Setting the counting gate to 2–20 fL captures most platelets while excluding larger cells like red cells (about 80–100 fL) and white cells (even larger). That makes the range 2–20 fL the best fit for counting platelets. Range options outside this window would miss many platelets or include non-platelet cells, leading to inaccurate counts.

Electrical impedance counts cells by their volume, using size gates to separate different cell types. Platelets are the smallest blood cells, with volumes roughly 2 to 20 femtoliters. Setting the counting gate to 2–20 fL captures most platelets while excluding larger cells like red cells (about 80–100 fL) and white cells (even larger). That makes the range 2–20 fL the best fit for counting platelets. Range options outside this window would miss many platelets or include non-platelet cells, leading to inaccurate counts.

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