Pelviureteric Junction Obstruction – Board-Style Questions

What this deck covers

Pelviureteric Junction Obstruction in 18 board-style clinical cases with worked explanations. Each case gives you a clinical vignette, four options, the correct answer, and an explanation of why each of the other three is wrong, with the guideline or textbook it follows named on the answer.

Board-style teaching questions for paediatricians and trainees preparing for paediatric board, MRCPCH and licensing examinations. Written from published guidelines and standard paediatric textbooks, with the source named on every answer.

The 18 cases, in order

1. How big is worrying
2. When to scan the baby
3. While he waits
4. The number that is followed
5. Preparing the test
6. Reading the curve
7. What ends the waiting
8. The operation
9. Pain that comes and goes
10. Sent to the wrong clinic
11. The vessel across the ureter
12. Fever in a dilated system
13. Tubes and what they do
14. What comes back
15. The kidney that does not recover
16. The other side
17. How long is he followed
18. When it gets better by itself

Diagnoses and management options tested

Across the 18 cases you are asked to choose between options such as: The larger measurement carries a much higher risk of real obstruction, This afternoon, well before the family go home tomorrow, Prophylaxis while the tract is dilated and reflux unexcluded, The thickness of the bladder wall at each visit, Fasting the baby for six hours before the study, Function is preserved, so the drainage pattern may be ignored, A fall in split function on the affected side, Remove the affected kidney to protect the other side, A plain abdominal radiograph taken between episodes, A coincidental finding unrelated to her vomiting, It is a recognised cause, commoner in older children, The risk of the fever causing a febrile convulsion, To measure urine from that kidney alone, A failed operation, since his function is still reduced.

Clinical pearls from this deck

• The bigger the pelvis and the more the calyces, the likelier it is real.
• Scan him when he is wet, not on the day he is dry.
• Cover him while the anatomy is unknown, then stop.
• Follow the pelvis, the calyces and the cortex.
• A dry baby with a full bladder looks obstructed on any renogram.
• Function decides; the curve describes.

Work through the deck once for recognition, then again a week later to test yourself — each question gives the answer and explains why every other option fails.

More from this system: all nephrology case decks · pediatric reference values.