True/False MCQ · Abnormal Transition at Birth
Regarding the precipitants and consequences of PPHN, which of the following statements are TRUE?
- APPHN can cause neonatal cyanosis
- BPPHN improves with cooling the neonate
- CPPHN is prevented by withholding oxygen
- DAcidosis can precipitate PPHN
- EHypovolaemia can precipitate PPHN
Show answers and explanation
- A. True
- B. False: Cooling worsens, not improves, PPHN.
- C. False: Withholding oxygen worsens, not prevents, PPHN.
- D. True
- E. True
PPHN precipitants and consequences
- Precipitated by acidosis, hypovolaemia (and hypoxia/hypothermia); causes cyanosis from right-to-left shunting.
Why A is true
PPHN can cause neonatal cyanosis.
Why B is false
Cooling worsens, not improves, PPHN.
Why C is false
Withholding oxygen worsens, not prevents, PPHN.
Why D is true
Acidosis can precipitate PPHN.
Why E is true
Hypovolaemia can precipitate PPHN.
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