OB HESI EXAM QUESTIONS AND ACCURATE
ANSWERS 2024-2025
When teaching a pregnant client who is complaining of aching swollen, leg veins, the
nurse would be explaining that this is most likely the result of which of the following?
A. thrombophlebitis
B. pregnancy induced hypertension
C. pressure on blood vessels from the enlarging uterus
D. the force of gravity pulling down on the uterus - Answer D - Explanation
The pressure from the expanding uterus on blood vessels makes the pregnant woman
more susceptible to venous stasis of the lower extremities. This could lead to edema
and the formation of varicose veins. Thrombophlebitis refers to inflammation of the
veins due to thrombus formation. Pregnancy-related hypertension does not contribute
to these symptoms. Gravity is only a minor contributing factor with these symptoms.
Which of the following would be a cause of a false-positive result on a pregnancy test?
A. Less than 10 days has elapsed since an abortion
B. Testing was done too early or too late in the
pregnancy
C. The urine specimen had been kept too long at room
temperature
D. A spontaneous abortion or a missed abortion is
pending - Answer A - Explanation
A false-positive reaction may be obtained if the
Pregnancy test is made less than 10 days following abortion. The testing of pregnancy
too early or too late in pregnancy, storage of urine sample for too long at room
temperature, and impending spontaneous or missed abortion are the causes for
false-negative results.
, During a lecture about reproduction, a student nurse asks the instructor what
determines the sex of the fetus. Correct information to respond to this question would
be:
A. "The sex of the fetus is not determined until the eighth week of gestation."
B. "The fertilization of the zygote is the point at which sex is determined."
C. "Males have one less pair of chromosomes than females."
D. "Sex is determined by the chromosomes contributed by the ovum." -Answer B.
Explanation
The sex of the fetus is determined at the point that the sperm fertilizes the ovum to form
the zygote. Sex is ultimately determined by the chromosome contributed by the sperm.
Pediazole is a suspension medication that contains 200 mg erythromycin and 600 mg
sulfisoxazole per 5 mL. The physician orders Pediazole 4 mL PO every 12 hours. How
many mg of sulfisoxazole is this client receiving in a 24-hour period?
A. 160 mg
B. 320 mg
C. 480 mg
D. 960 mg - Answer D. Explanation
600 mg/ 5 mL = x mg/ 4 mL
2400 = 5x
x= 2400/5
x= 480 mg per dose x 2 = 960 mg in 24 hours.
ANSWERS 2024-2025
When teaching a pregnant client who is complaining of aching swollen, leg veins, the
nurse would be explaining that this is most likely the result of which of the following?
A. thrombophlebitis
B. pregnancy induced hypertension
C. pressure on blood vessels from the enlarging uterus
D. the force of gravity pulling down on the uterus - Answer D - Explanation
The pressure from the expanding uterus on blood vessels makes the pregnant woman
more susceptible to venous stasis of the lower extremities. This could lead to edema
and the formation of varicose veins. Thrombophlebitis refers to inflammation of the
veins due to thrombus formation. Pregnancy-related hypertension does not contribute
to these symptoms. Gravity is only a minor contributing factor with these symptoms.
Which of the following would be a cause of a false-positive result on a pregnancy test?
A. Less than 10 days has elapsed since an abortion
B. Testing was done too early or too late in the
pregnancy
C. The urine specimen had been kept too long at room
temperature
D. A spontaneous abortion or a missed abortion is
pending - Answer A - Explanation
A false-positive reaction may be obtained if the
Pregnancy test is made less than 10 days following abortion. The testing of pregnancy
too early or too late in pregnancy, storage of urine sample for too long at room
temperature, and impending spontaneous or missed abortion are the causes for
false-negative results.
, During a lecture about reproduction, a student nurse asks the instructor what
determines the sex of the fetus. Correct information to respond to this question would
be:
A. "The sex of the fetus is not determined until the eighth week of gestation."
B. "The fertilization of the zygote is the point at which sex is determined."
C. "Males have one less pair of chromosomes than females."
D. "Sex is determined by the chromosomes contributed by the ovum." -Answer B.
Explanation
The sex of the fetus is determined at the point that the sperm fertilizes the ovum to form
the zygote. Sex is ultimately determined by the chromosome contributed by the sperm.
Pediazole is a suspension medication that contains 200 mg erythromycin and 600 mg
sulfisoxazole per 5 mL. The physician orders Pediazole 4 mL PO every 12 hours. How
many mg of sulfisoxazole is this client receiving in a 24-hour period?
A. 160 mg
B. 320 mg
C. 480 mg
D. 960 mg - Answer D. Explanation
600 mg/ 5 mL = x mg/ 4 mL
2400 = 5x
x= 2400/5
x= 480 mg per dose x 2 = 960 mg in 24 hours.
