Page 160 - Color_Atlas_of_Physiology_5th_Ed._-_A._Despopoulos_2003

A. P CO 2 /pH nomogram (without NBB) B. P CO 2 /pH nomogram (with NBB)
Effect of NBB
P CO 2 P CO 2 P CO 2 P CO 2
(kPa) (mmHg) (kPa) (mmHg)
12 100 12 100
– Standard
10 – [HCO 3 ]=40mmol/L 80 10 HCO 3 – 80
8 – [HCO 3 ]=24mmol/L 60 8 60
50 50
6 6 e d C,D,E 50
5.33 40 5.33 40
10 20 30 50 10 20 30 Assessment of Acid–Base Status
[HCO 3 ]=13mmol/L
4 30 4 30
Actual
3 3 –
20 HCO 3 c 20
2 2
6.8 7.0 7.2 7.4 7.6 pH 6.8 7.0 7.2 7.4 7.6 pH
Plate 6.5
C. Siggaard-Andersen nomogram

P CO 2 P CO 2
(kPa) (mmHg)
45 G 55 60 100
40 65
12 35 100 200 70 90
0 [Hb] (g/L) 75
g A 80
10 a 80
70
30
8 Buffer bases (BB) 60
(mEq/L)
25
50
C,D,E,F [HCO 3 ]
–
6 +5
e d +10 (mmol/L)
5.33 40
5 10 15 0 30 40 50
19 20 –5
+15
4 –10 30
18 c
Base excess (BE)
(mEq/L)
f
17
3 –15
b B
2.7 20
16
2
6.8 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7
pH 147
Despopoulos, Color Atlas of Physiology © 2003 Thieme
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