Blood test explanation - Hematology

Hematology

Red blood cells

These values (except Hemoglobin in plasma) are for total blood and not only blood plasma.

Test	Patient	Lower limit	Upper limit	Unit	Comments
Hemoglobin (Hb)	male	2.0,[127] 2.1[6]	2.5,[127] 2.7[6]	mmol/L	Higher in neonates, lower in children.
		130,[3] 132,[7] 135[6]	162,[7] 170,[3] 175[6]	g/L
	female	1.8,[127] 1.9[6]	2.3,[127] 2.5[6][127]	mmol/L	Sex difference negligible until adulthood.
		120[3][6][7]	150,[3] 152,[7] 160[6][15]	g/L
Hemoglobin in plasma		0.16[6]	0.62[6]	μmol/L	Normally diminutive compared with inside red blood cells
		1	4	mg/dL
Glycosylated hemoglobin (HbA1c)	< 50 years	3.6[3]	5.0[3]	% of Hb
	> 50 years	3.9[3]	5.3[3]
Haptoglobin	< 50 years	0.35[3]	1.9[3]	g/L
	> 50 years	0.47[3]	2.1[3]
Hematocrit (Hct)	male	0.39,[3] 0.4,[7] 0.41,[6] 0.45[15]	0.50,[3] 0.52,[7] 0.53,[6] 0.62[15]
	female	0.35,[3] 0.36,[6] 0.37[7][15]	0.46,[6][7][3] 0.48[15]
	Child	0.31[7]	0.43[7]
Mean cell volume (MCV)	Male	76,[15] 82[7]	100,[15] 102[7]	fL	Cells are larger in neonates, though smaller in other children.
	Female	78[7]	101[7]	fL
Red blood cell distribution width (RDW)		11.5[7]	14.5[7]	%
Mean cell hemoglobin (MCH)		0.39[6]	0.54[6]	fmol/cell
		25,[6] 27[15][3]	32,[15] 33,[3] 35[6]	pg/cell
Mean corpuscular hemoglobin concentration (MCHC)		31,[7] 32[15][3]	35,[7] 36[15][3]	g/dL
		4.8,[128] 5.0[128]	5.4,[128] 5.6[128]	mmol/L
Erythrocytes/Red blood cells (RBC)	male	4.2,[15] 4.3[6][7][3]	5.7,[3] 5.9,[6] 6.2,[7] 6.9[15]	x1012/L or mln/mm3
	Female	3.5,[6] 3.8,[7] 3.9[3]	5.1,[3] 5.5[6][7]
	Infant/Child	3.8[7]	5.5[7]
Reticulocytes		26[3]	130[3]	x109/L
	Adult	0.5[6][7]	1.5[6][7]	% of RBC
	Newborn	1.1[7]	4.5[7]	% of RBC
	Infant	0.5[7]	3.1[7]	% of RBC