A healthcare professional is preparing to administer magnesium sulfate 2 g/hr IV to a client who is in preterm labor. Available is 20 g of magnesium sulfate in 500 mL of dextrose 5% in water (D5W). How many mL/hr should the IV infusion pump be set to administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

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Question 1 of 5

A healthcare professional is preparing to administer magnesium sulfate 2 g/hr IV to a client who is in preterm labor. Available is 20 g of magnesium sulfate in 500 mL of dextrose 5% in water (D5W). How many mL/hr should the IV infusion pump be set to administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer: C

Rationale: To calculate the mL/hr for the IV infusion pump, we need to use the formula: (Desired dose in mg/hr * Volume of solution in mL) / Concentration of solution in mg/mL. Given: Desired dose = 2 g/hr = 2000 mg/hr Volume of solution = 500 mL Concentration of solution = 20 g in 500 mL = 20,000 mg in 500 mL = 40 mg/mL Now, plug these values into the formula: (2000 mg/hr * 500 mL) / 40 mg/mL = 25,000 mL/hr Round this to the nearest whole number, which is 25,000 mL/hr ≈ 50 mL/hr. Therefore, the IV infusion pump should be set to administer 50 mL/hr, making choice C the correct answer. Option A (60 mL/hr) and Option D (80 mL/hr) are incorrect as they do not match the calculated value. Option

Question 2 of 5

A healthcare provider is assessing fetal heart tones for a pregnant client. The provider has determined the fetal position as left occipital anterior. To which of the following areas of the client's abdomen should the provider apply the ultrasound transducer to assess the point of maximum intensity of the fetal heart?

Correct Answer: C

Rationale: The correct answer is C, left lower quadrant. In the left occipital anterior fetal position, the fetus's back is on the left side of the mother's abdomen. To assess the point of maximum intensity of the fetal heart tones, the ultrasound transducer should be applied to the area closest to the fetal back, which is the left lower quadrant. Applying the transducer in this area allows for optimal detection of the fetal heart sounds. Choices A, B, and D are incorrect as they are not in proximity to the fetal back in the left occipital anterior position, leading to suboptimal detection of fetal heart tones.

Question 3 of 5

An adolescent is being taught about levonorgestrel contraception by a school nurse. What information should the nurse include in the teaching?

Correct Answer: A

Rationale: Step 1: Levonorgestrel is a type of emergency contraception that is most effective when taken within 72 hours after unprotected sex. Step 2: Taking the medication within the specified time frame increases its effectiveness in preventing pregnancy. Step 3: Thus, the nurse should emphasize to the adolescent the importance of taking the medication promptly after unprotected intercourse. Step 4: This information is crucial for the adolescent to understand the time-sensitive nature of levonorgestrel contraception. Summary: - Choice B is incorrect because it provides contradictory information. Levonorgestrel can be taken even if the individual is on an oral contraceptive. - Choice C is incorrect as starting a period is not a reliable indicator of pregnancy. A pregnancy test is recommended if there are concerns. - Choice D is incorrect because levonorgestrel is a single-dose emergency contraception and does not provide protection for 14 days.

Question 4 of 5

A nurse is teaching clients in a prenatal class about the importance of taking folic acid during pregnancy. The nurse should instruct the clients to consume an adequate amount of folic acid from various sources to prevent which of the following fetal abnormalities?

Correct Answer: A

Rationale: The correct answer is A: Neural tube defect. Folic acid is essential for proper neural tube development in the fetus, preventing abnormalities like spina bifida. Consuming an adequate amount of folic acid before and during pregnancy reduces the risk of neural tube defects. Trisomy 21 (choice B) is caused by an extra copy of chromosome 21, not influenced by folic acid intake. Cleft lip (choice C) and atrial septal defect (choice D) have multifactorial causes and are not directly prevented by folic acid consumption.

Question 5 of 5

A client is being educated by a healthcare provider about the physiological changes that occur during pregnancy. The client is at 10 weeks of gestation and has a BMI within the expected reference range. Which of the following client statements indicates an understanding of the teaching?

Correct Answer: B

Rationale: The correct answer is B: "I will likely need to use alternative positions for sexual intercourse." At 10 weeks of gestation, the uterus begins to enlarge, potentially causing discomfort in the missionary position. This statement shows an understanding of the physical changes in pregnancy. A is incorrect because the recommended weight gain for a client with normal BMI is 25-35 pounds during pregnancy, not less than 15-20 pounds. C is incorrect as breast size typically increases during pregnancy due to hormonal changes, regardless of prior breast reduction surgery. D is incorrect because stretch marks are common during pregnancy, regardless of skin complexion.

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