Dizygotic twins develop from:
a. a single fertilized ovum and are always of the same sex.
b. a single fertilized ovum and may be the same sex or different sexes.
c. two fertilized ova and are the same sex.
d. two fertilized ova and may be the same sex or different sexes.
D
Dizygotic twins are two different zygotes, each conceived from a single ovum and a single sperm. They may be both male, both female, or one male and one female.
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Practice guidelines are designed to:
a. Be inflexible. b. Be utilized in every circumstance. c. Provide a reference point for decision making. d. Be created by a professional organization to guide the practice of a profession.
Which assessment finding would necessitate action by the nurse for a 10-month-old child who is 4 hours postoperative for the placement of a urethral stent?
1. Bloody urine 2. One void since returning from surgery 3. Bladder spasms responding to pharmacologic intervention 4. Double diapering from the previous shift
Which of the following may occur due to insufficient folate intake during pregnancy? Select all that apply.
A) Meningoencephalocele B) Anencephaly C) Hydranencephaly D) Iniencephaly E) Spina bifida