Genetics 2 Flashcards

1
Q

Arnold-Chiari Malformation

A

Brainstem, 4th ventricle, and part of cerebellum are pulled downward through the foramen magnum

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2
Q

Arnold-Chiari Malformation
Leads to blockage of

A

CSF flow

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3
Q

Arnold-Chiari Malformation
Pressure may develop on brainstem where the

A

cranial nerves are located

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4
Q

Arnold-Chiari Malformation
A ventriculoperintoneal (VP) shunt provides drainage of

A

CSF from the ventricles to an extra cranial compartment

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5
Q

Arnold-Chiari Malformation
Extra tubing is left in the extracranial site to

A

uncoil as the child grows

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6
Q
  • Risk For Pressure Ulcers with Myelomeningocele
    • Factors which contribute to the development of pressure ulcers:
A
  • Friction
  • Pressure from casts or splints
  • Bony prominence
  • Vascular problem
  • Poor transfer skill
  • Obesity
  • Asymmetrical weight bearing or posture (scoliosis, orthopedic deformities)
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7
Q

Bowel and Bladder controlled by

A

S2-4

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8
Q

NTDs are detected prenatally by

A

Ultrasonic scanning and MRI
Serum alpha‐fetoprotein (AFP) testing

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9
Q

Prenatal Diagnosis of Myelomeningocele
Amniocentesis can detect only

A

Open NTDs
Is recommended women who have previously had children with NTDs

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10
Q

Prenatal diagnosis makes it possible for

A
  • Planned cesarean section
  • Therapeutic abortion
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11
Q

Translucent:

A

meningocele

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12
Q

Non-translucent:

A

myelomeningocele

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13
Q

Children with spina bifida have a greater risk of becoming

A

allergic to latex

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14
Q

Latex allergy symptoms

A

Watery eyes, wheezing, hives, rash, swelling, and in severe cases, anaphylaxis, a life‐threatening reaction

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15
Q

Unstable Hip Dysplasia

A

Hip is positioned normally but can be dislocated by manipulation (Barlow maneuver)

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16
Q

Subluxation/Incomplete Dislocation

A

Femoral head remains in contact with the acetabulum but the femoral head is partially displaced or uncovered

17
Q

Dislocation

A

femoral head totally outside the acetabulum

18
Q

Carrying the infant with hip flex, abd, ER —>

A

increase hip stability

19
Q

Most dislocations occur in the

A

perinatal period

20
Q

Breech position in utero Places the hips in a position of acute

A

flexion and adduction

21
Q
  • The longer the dislocation is present, the greater the _______
    Stretching of the _____
    Flattening of the ____
A

secondary changes
hip capsule
femoral head

22
Q

Congenital Hip Dysplasia
In the newborn and non-ambulatory up to 12 months, there may be one or more positive signs

A
  • Physical asymmetries in ROM (even as little as 10 degrees is considered significant, especially limitation of hip abduction)
  • Asymmetry in the buttock or gluteal fold (higher on the affected side)
  • Extra thigh skin folds
  • Leg length discrepancy
23
Q

Uncorrected bilateral dysplasia may cause

A

duck waddle gait

24
Q

Unilateral dysplasia may cause a limp with a

A

+ve Trendelenburg sign during the stance phase of gait on the involved side

25
A flexion contracture on the involved side(s), which then contributes to
marked lumbar lordosis
26
Hip dysplasia diagnosis Barlow and Ortolani maneuvers have a
high false positive rate
27
Hip dysplasia diagnosis The Galeazzi sign (LLD) is
more accurate
28
Most common treatment for hip dysplasia
infants hip in flexion and abduction
29
Hip Dysplasia, <6 months treatment
The use of a hip harness such as the Pavlik harness
30
Hip dysplasia >6 months treatment
- Reduction under anesthesia - Surgery may be necessarily followed by the use of a hip cast