Blood
Cells
One microliter of blood contains: 4.7 to 6.1 million (male), 4.2 to 5.4 million (female) erythrocytes: Red blood cells contain the blood's hemoglobin and distribute oxygen.

Blood

Section Title: Cells
Table Section Text: One microliter of blood contains: 4.7 to 6.1 million (male), 4.2 to 5.4 million (female) erythrocytes: Red blood cells contain the blood's hemoglobin and distribute oxygen.

Parameter	Value

Hematocrit	45 ± 7 (38–52%) for males 42 ± 5 (37–47%) for females

pH	7.35–7.45

base excess	−3 to +3

PO2	10–13 kPa (80–100 mm Hg)

PCO2	4.8–5.8 kPa (35–45 mm Hg)

HCO3−	21–27 mM

Oxygen saturation	Oxygenated: 98–99% Deoxygenated: 75%

Sentence(s)

Blood pH has a range of 7.35 to 7.45.

final_sentence: Blood pH has a range of 7.35 to 7.45.