Nursing Elites

1. 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.)

• A. 60
• B. 30
• C. 50
• D. 80

Correct answer: C

Rationale: To administer magnesium sulfate 2 g/hr IV, the healthcare professional should set the IV infusion pump to administer 50 mL/hr. The calculation is as follows: 20 g / 500 mL = 2 g / X mL, X = 50 mL/hr. Choice A (60 mL/hr) is incorrect as it does not match the calculated rate. Choice B (30 mL/hr) is incorrect as it is half of the calculated rate. Choice D (80 mL/hr) is incorrect as it is higher than the calculated rate.

2. A nurse in a prenatal clinic is caring for a client who is at 7 weeks of gestation. The client reports urinary frequency and asks if this will continue until delivery. Which of the following responses should the nurse make?

• A. It's a minor inconvenience, which you should ignore.
• B. In most cases it only lasts until the 12th week, but it will continue if you have poor bladder tone.
• C. There is no way to predict how long it will last in each individual client.
• D. It occurs during the first trimester and near the end of the pregnancy.

Correct answer: D

Rationale: Urinary frequency is common during the first trimester and again at the end of pregnancy when the baby drops into the pelvis, putting pressure on the bladder.

3. During Leopold maneuvers on a client in labor, which technique should be used by the nurse to identify the fetal lie?

• A. Apply palms of both hands to sides of the uterus
• B. Palpate the fundus of the uterus
• C. Grasp the lower uterine segment between thumb and fingers
• D. Stand facing the client's feet with fingertips outlining cephalic prominence

Correct answer: B

Rationale: Palpating the fundus of the uterus during Leopold maneuvers is crucial to identify the fetal lie. This technique allows the nurse to determine the position of the baby's back and locate the fetal heart sounds, aiding in assessing the fetal lie. Choices A, C, and D are incorrect as they do not directly relate to identifying the fetal lie during Leopold maneuvers. Applying palms to the sides of the uterus or grasping the lower uterine segment do not provide the necessary information about the fetal lie. Standing facing the client's feet and outlining cephalic prominence is more related to assessing the fetal presentation, not the fetal lie.

4. During preterm labor, a client is scheduled for an amniocentesis. The nurse should review which of the following tests to assess fetal lung maturity?

• A. Alpha-fetoprotein (AFP)
• B. Lecithin/sphingomyelin (L/S) ratio
• C. Kleihauer-Betke test
• D. Indirect Coombs' test

Correct answer: B

Rationale: The Lecithin/sphingomyelin (L/S) ratio is a test used to evaluate fetal lung maturity. An L/S ratio greater than 2:1 indicates fetal lung maturity. This test helps in determining the risk of respiratory distress syndrome in the newborn. Alpha-fetoprotein (AFP) is used in screening for neural tube defects, not for assessing lung maturity. The Kleihauer-Betke test is used to detect fetal-maternal hemorrhage, not fetal lung maturity. The Indirect Coombs' test is used to identify the presence of antibodies in the mother's blood that could attack fetal red blood cells, not for assessing lung maturity.

5. When assessing newborn reflexes, what action should be taken to elicit the Moro reflex?

• A. Perform a sharp hand clap near the infant.
• B. Hold the newborn vertically allowing one foot to touch the table surface.
• C. Place a finger at the base of the newborn's toes.
• D. Turn the newborn's head quickly to one side.

Correct answer: A

Rationale: The correct answer is A: Perform a sharp hand clap near the infant. The Moro reflex, also known as the startle reflex, is elicited by a sudden stimuli such as a sharp hand clap near the infant. This reflex is characterized by the infant's arms extending and then flexing with a distinctive 'startle' motion. It is a normal and expected reflex in newborns, typically disappearing by 3-6 months of age. Choices B, C, and D are incorrect because they do not elicit the Moro reflex; holding the newborn vertically (choice B) or placing a finger at the base of the newborn's toes (choice C) are associated with other reflexes, while turning the newborn's head quickly to one side (choice D) is related to the tonic neck reflex.

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