During a postpartum hemorrhage in a patient with asthma, which method is contraindicated?

During a postpartum hemorrhage in a patient with asthma, which method is contraindicated?

• A. Methergine
• B. Oxytocin
• C. Misoprostol
• D. Carboprost

Answer: (A)

In this scenario, the key idea is to avoid any uterotonic that can trigger bronchospasm in a patient with asthma. Prostaglandin F2 alpha analogs are known to cause bronchoconstriction, so they are avoided in asthma. Carboprost falls into this category and is contraindicated because it can provoke severe bronchospasm, worsening the asthma during postpartum hemorrhage. Oxytocin and misoprostol do not carry the same bronchospasm risk and are considered safer options for a patient with asthma. Methergine (methylergonovine) is an ergot alkaloid used to sustain uterine tone, but its main contraindications are hypertension and certain cardiovascular conditions rather than asthma, so it’s not avoided specifically for asthma. So, the agent to avoid in an asthmatic patient with postpartum hemorrhage is the prostaglandin F2 alpha analog, carboprost.

In this scenario, the key idea is to avoid any uterotonic that can trigger bronchospasm in a patient with asthma. Prostaglandin F2 alpha analogs are known to cause bronchoconstriction, so they are avoided in asthma. Carboprost falls into this category and is contraindicated because it can provoke severe bronchospasm, worsening the asthma during postpartum hemorrhage.

Oxytocin and misoprostol do not carry the same bronchospasm risk and are considered safer options for a patient with asthma. Methergine (methylergonovine) is an ergot alkaloid used to sustain uterine tone, but its main contraindications are hypertension and certain cardiovascular conditions rather than asthma, so it’s not avoided specifically for asthma.

So, the agent to avoid in an asthmatic patient with postpartum hemorrhage is the prostaglandin F2 alpha analog, carboprost.