Page 206 - Critical Maternity & Newborn Health Nursing
P. 206
(B) Vit. B12 Deficiency Anemia (Addisonian Pernicious Anemia): It is
rare.
Daily Requirement: less than l mg.
Etiology:
1- Inadequate intake (rare).
2- Deficient intrinsic factor as in atrophic gastritis or gastrectomy.
3- Malabsorption syndrome.
4- Increased demand e.g. pregnancy.
Clinical Picture:
• General symptoms of anemia.
• GIT manifestations: as folic acid deficiency.
Nervous manifestations:
• Subacute combined degeneration.
• Peripheral neuritis.
Investigations:
As folic acid deficiency + decreased serum vit. B12.
Treatment:
Vit. BI2 IM injection.
N.B. Folic acid is never given alone for B12 deficiency anemia as itwill
increase the nervous manifestations.
(Ill) Haemolytic Anemias
Etiology:
205 Table of Contents
