A 20 year old pregnant woman at 32 weeks of pregnancy has iron deficiency anaemia. However, she is not able to tolerate oral iron. What should be the optimum management?

Appeared in: RML 2023

Explanation

When a pregnant woman cannot tolerate oral iron, parenteral iron is the indicated treatment.
Intravenous (IV) iron is the preferred parenteral route because it is safer, less painful, and more efficient than intramuscular (IM) injections.
IV iron can rapidly replenish iron stores and correct anemia, and at 32 weeks gestation, there is enough time for this therapy to be effective before delivery.
Newer IV iron preparations like iron sucrose and ferric carboxymaltose have a low risk of adverse reactions.

Option A: Blood transfusion is reserved for cases of severe anemia (e.g., hemoglobin below 7 g/dL), hemodynamic instability, or when delivery is imminent (e.g., after 36 weeks) and there is no time for iron therapy to work.
Option C: The patient is explicitly stated to be intolerant to oral iron. While ascorbic acid (Vitamin C) enhances the absorption of oral iron, it does not alleviate the gastrointestinal side effects that cause intolerance.
Option D: Intramuscular (IM) iron injections are no longer the preferred parenteral route. They are known to be very painful, can cause permanent dark staining of the skin at the injection site, and carry a risk of sterile abscess formation.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Management of iron deficiency anemia in pregnancy when oral therapy is not tolerated as background academic context rather than a clinical decision trigger.
Nurses play a crucial role in administering IV iron safely. This includes calculating the correct dose, monitoring for adverse reactions like anaphylaxis, and providing patient education.
A key safety measure is to have emergency resuscitation equipment and medications (like epinephrine) readily available during the infusion.
Patient education should include explaining the rationale for IV therapy, the potential side effects, and the expected timeline for improvement in hemoglobin levels.

How to Approach the Question

First, identify the key elements of the clinical scenario: a pregnant patient at 32 weeks with iron deficiency anemia.
Note the critical constraint: the patient cannot tolerate oral iron. This immediately rules out any management plan that relies on oral administration.
Evaluate the remaining options based on current clinical guidelines for anemia in pregnancy.
Compare parenteral routes (IV vs. IM). Recall that IV is the modern standard of care due to better safety and patient comfort.
Consider the indication for blood transfusion. This is an emergency measure for severe cases or when delivery is too soon for other treatments to work. At 32 weeks, there is still time.
Conclude that IV iron is the most appropriate, safe, and effective treatment in this specific situation.

Concept Tested & Keywords

Concept Tested: Management of iron deficiency anemia in pregnancy when oral therapy is not tolerated.
Stem keywords: pregnant woman, 32 weeks, iron deficiency anaemia, not tolerate oral iron
Lead-in keywords: optimum management
Clinical cues: Patient is at 32 weeks gestation, which allows sufficient time for parenteral iron to be effective before delivery.
Clinical cues: Intolerance to oral iron is the key factor that necessitates an alternative route of administration.

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E6 Gynecology Williams p. 412-414

E6 Ghai Essential Pediatrics(pp 26-904 of 913) p. 355-357

E6 Pharmacology KD Tripathi Essentials 9e Part 2 p. 276-278

Practise the full RML 2023

Attempt every question from this paper in a timed mock, then review the full solution for each one.