Causes of polyhydraminos include:a) Diabetes mellitusb) Preeclampsiac) Esophageal atresiad) Renal agenesise) Anencephaly
Correct Answer: ace
Description: Friends, for a second - let’s forget the lists of conditions leading to Oligohydramnios/Polyhydramnios (This happens quite often in exams).
Let’s reason out each option one by one.
Option “a” Diabetes mellitus
We all know polyhydramnios is a complication of maternal diabetes.
Pathophysiology:
Maternal hyperglycemia
↓
Fetal hyperglycemia
↓
Polyuria (of fetus) and osmotic diuresis
↓
Polyhydramnios (Option “a” is correct)
Option “b” Preeclampsia
Preeclampsia
↓
Decreased uteroplacental circulation
↓
Decreased fetal renal blood flow
↓
Decrease urine production by fetus
↓
Oligohydramnios
Option “c” Esophageal atresia
We all know - Amniotic fluid is kept in balance with the rate of production, by fetal swallowing of amniotic fluid.
In case of oesophageal atresia
↓
Decrease fetal swallowing
↓
i.e., Decrease absorption
↓
Polyhydramnios (option “c” is correct)
Same is the case with congenital diaphragmatic hernia/Facial clefts/Neck masses.
Option “d” Renal agenesis
Renal agenesis
↓
Decrease urine production
↓
Oligohydramnios (Option “d” is incorrect)
Same holds good for posterior urethral value in males.
Option “e” Anencephaly
In anencephaly (or meningomyelocele or spina bifida)
↓
Meninges are exposed
↓
Increase transudation of fluid from exposed meninges
↓
Polyhydramnios (Option “e” is correct)
So friends, it is not essential to mug up most of the causes of oligo/polyhydramnios.
Some causes which need to mugged up are:
Category:
Gynaecology & Obstetrics
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now