Manual of Equine Neonatal Medicine
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Blood Gases

Author(s):
Madigan J.E.
In: Manual of Equine Neonatal Medicine by Madigan J.E.
Updated:
JUN 19, 2017
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Blood Gas Normals - Equine Neonates (Lateral Recumbency)

Arterial

Age

O2mmH
(mEq/L)

CO2mmHg

pH

Base
Excess

HCO3
(mEq/L)

Immediate post-foaling [2]

40-50

52-60

7.20 -7.3

+2

24 - 26

2 hours [1]

68 ± 10

49 ± 2

7.37 ± 01

+4

26 ± 2

4-12 hours [1]

75 ± 5

47 ± 2

7.39 ± .01

+6

28 ± 2

24 hours [1]

81 ± 6

48 ± 2

7.40 ± .01

+6

28 ± 2

1-3 days [1]

90 ± 6

48 ± 2

7.40 ± .01

+6

28 ± 2

4-14 days [1]

86 ± 5

45 ± 2

7.41 ± .01

+6

28 ± 1

Premature [2] - birth

39 ± 5

55 ± 4

7.27

-3

24 ± 1

(320-330 days gestation)
- 1 hour

52 ± 4

48 ± 3

7.33

-1.3

25 ± 1

Values are expressed as mean ± SD

Venous

O2 mmHg

CO2 mmHg

pH
(mEq/L)

HCO3
(mEq/L)

42 ± 2

56 ± 2

7.33 ± 0.01

28 ± 2

42 ± 2

52 ± 2

7.38 ± 0.01

30 ± 2

42 ± 2

52 ± 2

7.38 ± 0.01

30 ± 3

43 ± 2

52 ± 2

7.38 ± 0.01

29 ± 2

38 ± 2

53 ± 2

7.38 ± 0.01

31 ± 2

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References

1. Madigan JE. Blood gas analysis in the equine neonate. Proceed Amer Assoc Eq Pract. 33rd Convention, pp 777-786, 1987.

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How to reference this publication (Harvard system)?

Madigan, J. E. (2017) “Blood Gases”, Manual of Equine Neonatal Medicine. Available at: https://www.ivis.org/library/manual-of-equine-neonatal-medicine/blood-gases (Accessed: 05 June 2023).

Affiliation of the authors at the time of publication

School of Veterinary Medicine, University of California-Davis, CA, USA.

Author(s)

  • John Madigan

    Madigan J.E.

    Professor of Medicine and Epidemiology
    MS DVM Dipl. ACVIM ACAW
    Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California
    Read more about this author

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