PU Study Guide 2026
Everything you need to pass the PU exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 PU Exam Format at a Glance
📚 PU Topics to Study (22)
✍️ Sample PU Questions & Answers
1. What is gastroschisis?
Gastroschisis is a paraumbilical abdominal wall defect, usually to the right of the cord, through which bowel herniates freely without a covering membrane.
2. Which marker on second-trimester ultrasound is associated with Down syndrome (Trisomy 21)?
An absent or hypoplastic nasal bone is one of the soft markers for Down syndrome identified on second-trimester ultrasound.
3. A hyperechoic bowel finding on second-trimester ultrasound may indicate which condition?
Echogenic bowel (bowel as bright as bone) is a soft marker associated with cystic fibrosis, Down syndrome, CMV infection, and fetal swallowing of blood.
4. In a naturally conceived triplet pregnancy, what is the most common chorionicity-amnionicity configuration?
Spontaneous triplets arise from three separately ovulated and fertilized eggs in the vast majority of cases, resulting in trichorionic-triamniotic placentation.
5. What condition does a 'strawberry-shaped' fetal skull suggest?
A strawberry-shaped skull, with flattening of the occiput and pointed frontal bones, is a classic cranial marker associated with Trisomy 18.
6. A normal placenta at term appears as which grade on the Grannum classification?
Placental grades 0 through II are considered normal during term pregnancy, while Grade III may indicate premature maturation.