HESI LPN
HESI Maternal Newborn
1. Which of the following statements is true of mutations?
- A. Mutations can only occur by chance.
- B. Mutations produce sperm and ova cells.
- C. Mutations occur through radiation or other environmental influences.
- D. Mutations help adenine combine with guanine to form the single spiral structure of DNA.
Correct answer: C
Rationale: The correct answer is C. Mutations can occur due to environmental influences such as radiation, chemicals, or other external factors, leading to changes in the DNA sequence. Choice A is incorrect because mutations can also occur due to errors in DNA replication, not solely by chance. Choice B is incorrect as mutations affect the DNA sequence itself, not the production of specific cells. Choice D is incorrect because mutations involve changes in the DNA sequence and do not specifically involve the formation of the DNA structure.
2. A nurse is caring for a client who has tuberculosis. Which of the following precautions should the nurse plan to implement when working with the client?
- A. Airborne
- B. Droplet
- C. Protective
- D. Contact
Correct answer: A
Rationale: Tuberculosis is an infectious disease that requires airborne precautions to prevent the transmission of infectious droplets. Airborne precautions involve wearing a mask, such as an N95 respirator, to protect against inhaling infectious particles. Droplet precautions are for diseases spread through respiratory droplets larger than those in airborne transmission, such as influenza. Protective precautions are not specific to respiratory infections and are more general measures to protect patients from harm. Contact precautions are used for diseases spread by direct or indirect contact, such as MRSA or C. diff infections, not for tuberculosis.
3. Your assessment of a mother in active labor reveals that a limb is protruding from the vagina. Management of this condition should include:
- A. Positioning the mother in a semi-Fowler's position, administering oxygen, and providing transport
- B. Positioning the mother in a head-down position with her hips elevated, administering oxygen, and providing transport
- C. Applying gentle traction to the protruding limb to remove pressure of the fetus from the umbilical cord
- D. Giving the mother 100% oxygen and attempting to manipulate the protruding limb so that delivery can occur
Correct answer: B
Rationale: In a situation where a limb is protruding from the vagina during active labor, the correct management includes positioning the mother in a head-down position with her hips elevated. This position helps relieve pressure on the umbilical cord and improves oxygenation to the fetus. Administering oxygen is important to ensure adequate oxygen supply to both the mother and the baby. Providing transport is necessary for prompt transfer to a medical facility for further management. Applying gentle traction to the protruding limb is not recommended as it can cause harm to the baby and should be avoided. Giving 100% oxygen and attempting to manipulate the protruding limb is not the correct approach and can potentially lead to further complications.
4. The healthcare provider is evaluating the health status of a 16-year-old client with a history of Type 1 diabetes. Which laboratory test would provide the most accurate information about long-term blood glucose control?
- A. Blood glucose level
- B. Glycosylated hemoglobin
- C. Urine ketones
- D. Serum insulin level
Correct answer: B
Rationale: The correct answer is B: Glycosylated hemoglobin (HbA1c). Glycosylated hemoglobin provides valuable information about blood glucose control over the past 2-3 months. This test measures the average blood sugar levels during this period, offering a more comprehensive view of long-term glycemic control. Choice A, blood glucose level, reflects the blood sugar concentration at the time of testing and may fluctuate throughout the day. Choice C, urine ketones, indicates the presence of ketones and is more relevant for assessing acute complications like diabetic ketoacidosis. Choice D, serum insulin level, evaluates insulin production and is not a direct indicator of long-term blood glucose control in diabetes management.
5. The urinary drainage of a client with continuous bladder irrigation is becoming increasingly red. Which intervention should the nurse implement?
- A. Increase the irrigation rate
- B. Lower the head of the bed
- C. Milk the catheter tubing
- D. Evaluate for fluid overload
Correct answer: A
Rationale: Increasing the irrigation rate can help clear any blood clots and reduce the redness in the urinary drainage. This intervention aims to improve the flushing of the bladder and potentially resolve the issue. Lowering the head of the bed would not directly address the red urinary drainage. Milking the catheter tubing is not recommended as it can cause trauma to the catheter or bladder, leading to further complications. While evaluating for fluid overload is an important nursing consideration, it does not directly address the immediate concern of redness in the urinary drainage, which requires a focused intervention to clear any blockages or clots in the system.