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?

1. A

   Blood Transfusion

2. B

   Intravenous iron injection

3. C

   Oral iron with ascorbic acid (Vitamin C)

4. D

   Intramuscular iron injection 2 times a week

Appeared in: RML Lucknow - 2021

Explanation

• The patient is in the third trimester (32 weeks), where there is insufficient time for oral iron to effectively raise hemoglobin levels before delivery.
• Intolerance to oral iron, a common side effect, necessitates a parenteral route for iron administration.
• Intravenous (IV) iron preparations like iron sucrose or ferric carboxymaltose are the preferred method for rapid and effective correction of iron deficiency anemia in this scenario.
• IV iron is considered safe and effective in the second and third trimesters, bypassing the gastrointestinal tract and directly replenishing iron stores.
• The expected hemoglobin increase with IV iron is faster compared to oral therapy, which is crucial close to term.

Why Other Options Were Wrong

• Option A: Blood transfusion is reserved for cases of severe anemia (typically hemoglobin below 7 g/dL) or when there is evidence of hemodynamic instability or fetal distress. It is not the first-line treatment for moderate anemia due to associated risks like transfusion reactions, fluid overload, and infections.
• Option C: The patient is explicitly stated to be unable to tolerate oral iron. Adding ascorbic acid (Vitamin C) enhances iron absorption but does not resolve the gastrointestinal intolerance (like nausea, constipation, or abdominal pain) that prevents the patient from taking the medication.
• Option D: Intramuscular (IM) iron injections are generally avoided. They are known to be painful, can cause permanent skin staining at the injection site, and have erratic and slower absorption compared to the intravenous route. Modern IV preparations are much safer and more effective.

Related Visual

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 late pregnancy as background academic context rather than a clinical decision trigger.
• Nurses play a crucial role in administering IV iron, which requires careful monitoring for adverse reactions, including rare but serious anaphylactic reactions. Vital signs should be monitored before, during, and after the infusion.
• Patient education is key. The nurse should inform the patient about the procedure, potential side effects (like metallic taste, headache, or flushing), and the importance of completing the therapy.
• Accurate calculation of the total iron dose based on the patient's weight and hemoglobin deficit is a critical patient safety measure to prevent iron overload.

How to Approach the Question

• First, identify the key clinical details in the scenario: a pregnant patient, late gestation (32 weeks), a diagnosis of iron deficiency anemia, and a specific problem (intolerance to oral iron).
• Analyze the time constraint. At 32 weeks, delivery is relatively soon, so any treatment must be fast-acting.
• Evaluate each option based on the patient's specific situation. The intolerance to oral iron immediately makes option C unsuitable.
• Compare the remaining parenteral options (IV, IM) and emergency measures (blood transfusion).
• Recall the indications for blood transfusion in anemia (severe cases, instability), which are not mentioned here. This makes option A less likely to be the 'optimum' choice.
• Compare IV and IM iron. IV iron is the modern standard due to its safety, efficacy, and rapid action, while IM iron has significant drawbacks. Therefore, IV iron is the most appropriate choice.

Concept Tested & Keywords

• Concept Tested: Management of iron deficiency anemia in late pregnancy
• Stem keywords: pregnant woman, 32 weeks, iron deficiency anaemia, not able to tolerate oral iron
• Lead-in keywords: optimum management
• Clinical cues: 32 weeks gestation indicates late pregnancy, requiring rapid correction of anemia before delivery.
• Clinical cues: Inability to tolerate oral iron rules out oral supplementation as a viable option.

Question ID

QWmGn7FuZtLfiJjGP8qazY

Copy ID

Reference Book

E6 Medicine Harrison 22e Part 1 pp. 807-809, 808-810