A woman is 28 weeks pregnant with twins. The ultrasound reveals that one twin is a boy and the other is a girl. The woman asks if her babies will be identical. The nurse will base her answer upon which of the following information.
Genetic testing when the babies are delivered will need to be done to determine this.
They are dizygotic because the ultrasound shows one is bigger than the other.
The twins are dizygotic because they are not the same sex
They are monozygotic because they are in different amniotic sacs.
The Correct Answer is C
A. Genetic testing is not necessary to determine if the twins are identical. Identical twins come from the same egg, while fraternal twins come from separate eggs.
B. The size difference alone does not determine whether twins are identical or fraternal.
C. Dizygotic twins (fraternal twins) are always of different sexes. This is because they are fertilized by two separate sperm and develop from two separate eggs.
D. Monozygotic twins (identical twins) occur when one fertilized egg splits into two embryos. The fact that they are different sexes rules out the possibility of monozygotic twins.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["D","F"]
Explanation
A. Brethine (Terbutaline) is typically used for stopping premature labor but is not recommended for all patients as it can have side effects like tachycardia and decreased uterine contractions. The patient does not appear to need to stop labor immediately, and other interventions are more appropriate.
B. Pitocin (Oxytocin) is used to augment labor but is not indicated in a case of early labor unless there is a need to speed up contractions or induce labor after a period of observation.
C. Misoprostol (Cytotec) is a medication used to ripen the cervix, but it’s not appropriate here as the patient is only 2 cm dilated and doesn't show indications for labor induction.
D. Betamethasone is used to promote fetal lung maturity in cases of preterm labor. Given the patient is at 34 weeks, this would be an appropriate intervention.
E. Oxytocin (Pitocin) would only be used for augmentation or induction in a more advanced labor situation, and it's not needed at this stage.
F. IV Fluids are important in this case to maintain hydration and possibly prevent preterm labor, as dehydration can exacerbate contractions.
Correct Answer is A
Explanation
A. Scarring or malformation of the fallopian tube increases the risk of an ectopic pregnancy. This condition can prevent the fertilized egg from traveling properly to the uterus, leading to implantation in the fallopian tube.
B. Urinary tract infections are not directly related to malformation or scarring of the fallopian tubes.
C. Decreased estrogen levels are not directly caused by fallopian tube scarring.
D. Early menopause is unrelated to fallopian tube scarring, which typically affects fertility but not directly menopause onset.
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