First Trimester Pregnancy Sonosim
Which of the following statements regarding transvaginal imaging technique is correct? - ANSWER--Transvaginal ultrasound is optimally performed with an empty bladder.-A chaperone should be present during transvaginal ultrasound examinations.
Multiple professional ultrasound societies have published position statements saying that the benefits of prudently performed medical ultrasound outweigh theoretical safety concerns. - ANSWER-True
Which of the following statements accurately characterizes ultrasound bioeffects and safety? - ANSWER-Mechanical index (MI) is an ultrasound machine output-display standard that is used to predict the likelihood of non-thermal bioeffects associated with ultrasound usage.
Which of the following statements accurately describes anatomic spaces within the female pelvis? - ANSWER-The posterior cul-de-sac is the potential space located between the uterus and the rectum.
Which of the following statements accurately describes ovarian anatomy? - ANSWER- The ovaries are typically located lateral to the uterus.
Which of the following statements correctly describes ligaments within the female pelvis? - ANSWER-The ovaries are connected to the uterus by ovarian ligaments.
Which of the following statements best characterizes sonographic interrogation of the yolk sac? - ANSWER--Follow-up assessment is warranted if the yolk sac measures greater than 7 mm prior to 9 weeks' gestation.-As the embryo enlarges, the yolk sac gradually involutes and is no longer sonographically visible around 12 weeks' gestation.
Which of the following statements best characterizes first-trimester gestation? - ANSWER--Embryo size increases by approximately 1 mm in length per day.-Crown-rump length (CRL) is an accurate assessment for first-trimester pregnancy dating.-The yolk sac is an extraamniotic structure.
Which of the following statements accurately characterizes pregnancy dating? - ANSWER-Crown-rump length is the most accurate biometric measurement for pregnancy dating.
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