CTAS 2: A 30-year-old at 24 weeks gestation has headache and syncope after furnace exposure. Vitals are BP 118/70, HR 104, SpO2 100% on pulse

Question

CTAS 2: A 30-year-old at 24 weeks gestation has headache and syncope after furnace exposure. Vitals are BP 118/70, HR 104, SpO2 100% on pulse oximetry. Carboxyhaemoglobin is 18% and fetal movement is reduced. ECG is normal. What is the most appropriate next step?

Accepted Answer

Give high-flow oxygen and consult for hyperbaric oxygen therapy

Answer

Delay oxygen until fetal ultrasound confirms distress

Answer

Discharge once headache improves after analgesia

Answer

Reassure because pulse oximetry is normal

Answer

Give methylene blue as antidote

Carbon monoxide poisoning in pregnancy — RCPSC EM MCQ

CTAS 2: A 30-year-old at 24 weeks gestation has headache and syncope after furnace exposure. Vitals are BP 118/70, HR 104, SpO2 100% on pulse oximetry. Carboxyhaemoglobin is 18% and fetal movement is reduced. ECG is normal. What is the most appropriate next step?