Nokea
The nurse is administering oxytocin. Which situation is an indication for the use of oxytocin?
- A. Decreased fetal heart rate and movements
- B. Stimulation of contractions during labor
- C. Cervical ripening near term in pregnant patients
- D. To reverse premature onset of labor
Correct Answer: B
Rationale: Oxytocin is used to stimulate uterine contractions during labor to induce or augment labor. It is also used for cervical ripening, but not to reverse preterm labor or address fetal distress.
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When considering the various types of contraceptive drugs, the nurse is aware that which type most closely duplicates the normal hormonal levels of the female menstrual cycle?
- A. Monophasic
- B. Biphasic
- C. Triphasic
- D. Short acting
Correct Answer: C
Rationale: Triphasic contraceptives mimic the natural hormonal fluctuations of the menstrual cycle by varying estrogen and progestin doses in three phases, unlike monophasic or biphasic forms.
The nurse is preparing to administer the contraceptive form of medroxyprogesterone. What route is appropriate?
- A. Subcutaneous
- B. Intramuscular
- C. Vaginal
- D. Transdermal
Correct Answer: B
Rationale: Medroxyprogesterone (Depo-Provera) as a contraceptive is administered intramuscularly for sustained release. Other routes are not appropriate for this formulation.
The nurse recognizes that use of estrogen drugs is contraindicated in which patient?
- A. A patient who has atrophic vaginitis
- B. A patient who has inoperable prostate cancer
- C. A woman who has just given birth and wants to prevent postpartum lactation
- D. A woman with a history of thrombophlebitis
Correct Answer: D
Rationale: Estrogen increases the risk of thromboembolism, making it contraindicated in patients with a history of thrombophlebitis. Atrophic vaginitis and inoperable prostate cancer are indications for estrogen therapy, and it is not used to prevent lactation.
A woman visits a health center requesting oral contraceptives. Which laboratory test is most important for the nurse to assess before the patient begins oral contraceptive therapy?
- A. Complete blood count
- B. Serum potassium level
- C. Vaginal cultures
- D. Pregnancy test
Correct Answer: D
Rationale: A pregnancy test is critical before starting oral contraceptives, as they are category X and can harm a fetus. Other tests are not routinely required for initiation.
The nurse is providing patient education for a patient taking an oral contraceptive. Which drugs may cause interactions with oral contraceptives? (Select all that apply.)
- A. Cephalexin
- B. Guaifenesin
- C. Warfarin
- D. Ibuprofen
- E. Theophylline
Correct Answer: A,C,E
Rationale: Cephalexin, warfarin, and theophylline can interact with oral contraceptives, reducing their efficacy or altering drug levels. Antibiotics like cephalosporins may decrease contraceptive effectiveness, and contraceptives can affect warfarin and theophylline metabolism.