A pregnant woman with no previous ultrasound presents at 22 weeks and is unsure of her last menstrual period. Which action best supports assessment of gestational age?
Correct answer: B. Arrange an obstetric ultrasound
- A. Estimate it from maternal height
- B. Arrange an obstetric ultrasound
- C. Use the date of quickening alone
- D. Assume the pregnancy is exactly 22 weeks
Explanation
When the menstrual history is uncertain, obstetric ultrasound can provide an objective estimate of gestational age and fetal development. Quickening varies widely between women and should not be used as the sole basis for dating.
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About Antenatal Care
Routine care during pregnancy includes booking history, physical examination, laboratory investigations, nutritional advice, immunisation, fetal growth assessment and scheduled antenatal visits. It also covers recognition of danger signs, calculation of gestational age and estimated delivery date, and the difference between uncomplicated surveillance and referral for high-risk pregnancy.
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