1) Definition: Lightheadedness, dizzy or spinning feeling, loss of consciousness; occurs more frequently in the first and third trimesters.

2) Physiological basis

(a) Changes in circulation as a result of pregnancy lead to dizziness.

(b) Sudden standing causes blood to pool in lower extremities.

(c) Hypotension is another factor contributing to this problem.

(d) Low blood sugar, hyperventilation, or anemia also cause dizziness.

3) Management

(a) When standing up, expectant mothers should rise slowly.

(b) Lie on your side to improve circulation.

(c) Consider small, frequent meals.

(d) Practice slow, deep breathing.

(e) Determine from your OB care provider whether you suffer from anemia; if so, eat foods high in iron. 
*If your OB care provider has prescribed iron, 
 remember to take your medication.

4) Indicators to refer to your OB care provider .

(a) Loss of consciousness should be reported to your OB care provider.

(b) Notify your OB care provider, if the blood pressure rises more than 30 systolic of 15 diastolic.

(c) A persistent headache should also be investigated.

(d) Complaints of reduced fetal activity should be reported to your OB care provider (immediately).