What is the recommended method of screening for gestational diabetes?
- A. Random blood glucose test
- B. Fasting blood glucose test
- C. Oral glucose tolerance test
- D. Hemoglobin A1C test
Correct Answer: C
Rationale: The correct answer is C: Oral glucose tolerance test. This test involves fasting overnight, then drinking a sugary solution and measuring blood glucose levels at intervals. It is the gold standard for diagnosing gestational diabetes due to its ability to detect glucose intolerance. A: Random blood glucose test is not recommended as it may not provide an accurate assessment. B: Fasting blood glucose test alone may miss cases of gestational diabetes. D: Hemoglobin A1C test is not recommended for diagnosing gestational diabetes.
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A nurse is developing a plan of care for a newborn who is to undergo phototherapy for hyperbilirubinemia. Which of the following actions should the nurse include in the plan?
- A. Feed the newborn 1 oz of water every 4 hr.
- B. Apply lotion to the newborn’s skin three times per day.
- C. Remove all clothing from the newborn except the diaper.
- D. Discontinue therapy if the newborn develops a rash.
Correct Answer: C
Rationale: Removing all clothing except the diaper ensures maximum skin exposure to the phototherapy lights, which is essential for effective treatment of hyperbilirubinemia.
Which of the following hormones is responsible for the growth and development of the mammary glands during pregnancy?
- A. Progesterone
- B. Estrogen
- C. Prolactin
- D. Oxytocin
Correct Answer: C
Rationale: Prolactin is the hormone responsible for stimulating the growth and development of the mammary glands during pregnancy, preparing them for milk production.
Which of the following hormones is responsible for inducing ovulation?
- A. Estrogen
- B. Progesterone
- C. Follicle-stimulating hormone (FSH)
- D. Luteinizing hormone (LH)
Correct Answer: D
Rationale: The correct answer is D: Luteinizing hormone (LH). LH surge triggers ovulation by stimulating the release of the mature egg from the ovarian follicle. Estrogen and progesterone play roles in the menstrual cycle but do not directly induce ovulation. FSH is involved in follicular development but not ovulation.
A nurse is obtaining a 2-hr postprandial blood glucose from a client. Which of the following actions should the nurse take?
- A. Puncture the finger while still damp with antiseptic solution.
- B. Smear the blood onto the reagent strip.
- C. Hold the finger above the heart prior to puncture.
- D. Select the lateral side of the finger for puncture.
Correct Answer: D
Rationale: The correct answer is D: Select the lateral side of the finger for puncture. This is important because the lateral side of the finger has fewer nerve endings, which can reduce pain for the client. Puncturing the finger while still damp with antiseptic solution (choice A) can dilute the blood sample and affect the accuracy of the test. Smearing the blood onto the reagent strip (choice B) can lead to incorrect results due to inadequate blood volume or improper application. Holding the finger above the heart prior to puncture (choice C) can increase blood flow and may result in a higher blood glucose reading. Therefore, selecting the lateral side of the finger for puncture is the most appropriate action to ensure accurate and less painful blood glucose monitoring.
Which of the following hormones is responsible for stimulating uterine contractions during labor?
- A. Progesterone
- B. Estrogen
- C. Prolactin
- D. Oxytocin
Correct Answer: D
Rationale: Oxytocin is the correct answer as it is the hormone responsible for stimulating uterine contractions during labor. Oxytocin is produced by the pituitary gland and plays a crucial role in initiating and sustaining labor contractions. It acts on the smooth muscle cells of the uterus, causing them to contract and aiding in the progression of labor. Progesterone and estrogen are involved in preparing the uterus for pregnancy but do not directly stimulate contractions. Prolactin is responsible for milk production, not uterine contractions. Therefore, D is the correct answer due to its specific role in labor contractions.