Assessment of a pregnant woman and her fetus reveals tachycardia and hypertension. There is also evidence suggesting vasoconstriction. The nurse would question the woman about use of which substance?
Marijuana
Cocaine
Nicotine
Caffeine
Heroin
The Correct Answer is B
Choice A Reason: This is incorrect because marijuana is a psychoactive substance that affects the central nervous system and can cause euphoria, relaxation, altered perception, and impaired memory. It does not cause tachycardia, hypertension, or vasoconstriction in pregnant women or their fetuses.
Choice B Reason: This is correct because cocaine is a stimulant substance that affects the cardiovascular system and can cause tachycardia, hypertension, vasoconstriction, arrhythmias, and ischemia in pregnant women or their fetuses. It can also increase the risk of placental abruption, preterm labor, intrauterine growth restriction, and fetal death.
Choice C Reason: This is incorrect because nicotine is a stimulant substance that affects the respiratory system and can cause bronchodilation, increased heart rate, and increased blood pressure in pregnant women or their fetuses. However, it does not cause vasoconstriction, but rather vasodilation.
Choice D Reason: This is incorrect because caffeine is a stimulant substance that affects the central nervous system and can cause alertness, insomnia, anxiety, and increased urine output in pregnant women or their fetuses. It does not cause tachycardia, hypertension, or vasoconstriction in moderate doses.
Choice E Reason: This is incorrect because heroin is an opioid substance that affects the central nervous system and can cause euphoria, sedation, analgesia, and respiratory depression in pregnant women or their fetuses. It does not cause tachycardia, hypertension, or vasoconstriction.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A: Vitamin E requirements do not decrease during pregnancy due to the increase in body fat. Vitamin E is a fat-soluble vitamin that acts as an antioxidant and protects cell membranes from oxidative damage. The recommended dietary allowance (RDA) for vitamin E during pregnancy is 15 mg/day, which is the same as for non-pregnant women.
Choice B: Prenatal vitamins will meet your need for increased folic acid during pregnancy. Folic acid is a water-soluble vitamin that is essential for DNA synthesis and cell division. Folic acid deficiency can cause neural tube defects in the fetus, such as spina bifida and anencephaly. The RDA for folic acid during pregnancy is 600 mcg/day, which can be obtained from prenatal vitamins and fortified foods.
Choice C: You will not need to double your intake of protein during pregnancy. Protein is a macronutrient that provides amino acids for tissue growth and repair. The RDA for protein during pregnancy is 1.1 g/kg/day, which is only slightly higher than for non-pregnant women (0.8 g/kg/day).
Choice D: You will not need to increase your intake of calcium during pregnancy. Calcium is a mineral that is important for bone health and muscle contraction. Calcium absorption and retention are enhanced during pregnancy, so there is no need to increase the intake above the RDA of 1000 mg/day for women aged 19 to 50 years.
Correct Answer is D
Explanation
Choice A: 28 weeks' gestation is too early to screen for group B streptococcus infection. Group B streptococcus (GBS) is a type of bacteria that can cause serious infections in newborns if transmitted from the mother during labor and delivery. The optimal time to screen for GBS is between 35 and 37 weeks' gestation.
Choice B: 32 weeks' gestation is also too early to screen for GBS infection. Screening at this time may not reflect the true colonization status of the mother at the time of delivery, as GBS can be transient or intermittent.
Choice C: 16 weeks' gestation is much too early to screen for GBS infection. Screening at this time has no clinical value, as GBS colonization can change throughout pregnancy.
Choice D: 36 weeks' gestation is the appropriate time to screen for GBS infection. Screening at this time can identify mothers who are colonized with GBS and who need intrapartum antibiotic prophylaxis to prevent neonatal sepsis, pneumonia, and meningitis.
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