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Kaplan Qbank USMLE



Author7 Posts
  #1

A newborn presents with ambiguous genitalia, having an enlarged clitoris or small phallus and labial fusion or hypoplastic scrotum. The newborn's sex can most reliably be established by which of the following tests?
A.Buccal smear to determine if there are one or two Barr bodies
B. Buccal smear to determine if there is one Barr body or none
C. Peripheral blood karyotype
D. Bone marrow karyotype
E. Polymerase chain reaction (PCR) using primers specific for the long arm of the Y chromosome

  #2

A..

  #3

no, C bz the sex Chromosomes are seen better in peripheral blood cells
which is the diagnosis?

  #4

Crista , can you tell the diagnosis..

:roll: i was thinking in terms of true hermaphrodite .

  #5

True hermaphroditism implies the presence of both male and female genitalia in the same patient and is extremely rare.
Male pseudohermaphroditism implies a genetic male with incomplete development of his genitalia.

  #6

In above Q you mentioned about clitoris and labia too ??

  #7

answer B????







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