Which one of the following positions of the mother should be avoided during vaginal delivery of the fetus?

  • lying flat on back 
  • semirecumbent with back and head elevated and legs drawn up 
  • lateral recumbent with superior leg flexed and supported 
  • squatting 
  • sitting
  • kneeling on all fours 
  • standing while being supported from behind 

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Avoid lying flat on back to avoid uterine compression of the inferior vena cava.


Source 

Auerback: Wilderness Medicine, 5th ed.