Which condition is a contraindication to lithium use?

Which condition is a contraindication to lithium use?

• A. Pregnancy
• B. Seasonal allergies
• C. Asthma
• D. Chronic pain

Answer: (A)

Lithium use is contraindicated in pregnancy because it can cause harm to the developing fetus. It crosses the placenta and has been linked to fetal heart defects, especially Ebstein's anomaly when exposure occurs in the first trimester, along with potential neonatal toxicity and thyroid or kidney issues in the newborn. For that reason, pregnancy is the clear contraindication.

The other conditions listed do not by themselves prevent lithium use: seasonal allergies, asthma, and chronic pain aren’t absolute contraindications, though individual clinical factors and potential drug interactions are always considered in treatment decisions.