Page 1 of 1: Anatomical closure of ducts arteriosus

rakhijain · Credits: 14597 My Scrapbook

Q. 300 Anatomical closure of ducts arteriosus occurs at:
a. Birth
b. 3-4 days
c. 10 day
d. 30 day

I think physiological ciosure occurs within 1 week and anatomical within 8 week but ans given is 10 days

Sanya · Credits: 611 My Scrapbook

Ans. C. 10 days

Functional closure within first 1-15 hours of life, anatomical closure within first days of life.

Toronto Notes, P18, 2004

PDA murmur is common and normal in newborn infants. It usually disappears within first 12 hours.
In normal neonates the dusctus arteriosus closes in responce to a ductsl PO2>50 mm Hg.

Pediactics clercship,2004, p.208-209.

Because is saying first days of life I would more thought for 3-4 days, but may be also 10 days : for sure!

Sanya

decembermist · Credits: 41201 My Scrapbook

TERM BABIES ::

functional closure : 24- 48hrs after delivery, which starts @ the pulmonic end.

anatomical closure: 4 weeks ( 10-21days)

persistence after 10days is considered abnormal.

PRE-TERM: as long as 3months

Guest · Credits: 79179 My Scrapbook My Reading List 262569 Books

Hello, dear Decembermist!

Thank a lot for reasonable explanation. Now is better!

Sanya

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