Air Force 1st Lt. Jessica Thomas, 88th Inpatient Operations Squadron maternal childcare flight staff registered nurse, views a pH scale after administering a Fern test at the family birthing section of the medical center at Wright-Patterson Air Force Base, Ohio, April 7, 2017. Fern tests, in conjunction with pH determination using pH paper, detect leakage of the amniotic fluid from the membranes surrounding the fetus. ( Air Force photo by Michelle Gigante/Released)


Size: 3000px × 2400px
Photo credit: © PJF Military Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 88th, birthing, care, clinical, inpatient, intensive, maternal, medical, nurse, operations, paper, people, ph, scale, squadron, unit