The nurse knows that a urinary catheter is added to the instrument table if a forceps-assisted birth is anticipated. What is the correct rationale for this intervention?
a. Spontaneous release of urine might contaminate the sterile field.
b. An empty bladder provides more room in the pelvis.
c. A sterile urine specimen is needed preoperatively.
d. A Foley catheter prevents the membranes from spontaneously rupturing.
B
Urine is sterile, so there is no danger that it would contaminate the sterile field. Catheterization provides room for the application of the forceps blades and limits bladder trauma. A clean-catch urinalysis is usually sufficient for preoperative treatment. The membranes must be ruptured and the cervix completely dilated for a forceps-assisted birth.
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