HESI LPN
Maternity HESI Test Bank
1. Before meiosis, a sperm cell:
- A. contains 46 chromosomes.
- B. contains two X chromosomes.
- C. is significantly larger than an egg cell.
- D. contains both an X and a Y chromosome.
Correct answer: A
Rationale: Before meiosis, a sperm cell contains 46 chromosomes. This is because sperm cells, like other somatic cells, have a diploid number of chromosomes. During meiosis, the number of chromosomes is halved to 23 to combine with an egg cell during fertilization. Choice B is incorrect because a sperm cell carries either an X or a Y chromosome, not both (Choice D). Choice C is incorrect as sperm cells are generally smaller than egg cells, which is an adaptation that aids in motility and penetration of the egg during fertilization.
2. What is an important dietary consideration for a child with cystic fibrosis?
- A. High-calorie, high-fat diet
- B. Low-sugar diet
- C. Increased dietary fiber
- D. High-sodium diet
Correct answer: A
Rationale: For a child with cystic fibrosis, an important dietary consideration is a high-calorie, high-fat diet. This type of diet helps address malabsorption issues commonly seen in individuals with cystic fibrosis and supports adequate growth and development. High-calorie, high-fat foods are recommended to help meet the increased energy needs of these individuals. Choices B, C, and D are not the most appropriate dietary considerations for a child with cystic fibrosis. A low-sugar diet may not provide enough calories for optimal growth, increased dietary fiber may exacerbate issues related to malabsorption, and a high-sodium diet is generally not recommended due to the risk of dehydration and electrolyte imbalances in individuals with cystic fibrosis.
3. A parent and 3-month-old infant are visiting the well-baby clinic for a routine examination. What should the nurse include in the accident prevention teaching plan?
- A. Remove small objects from the floor.
- B. Cover electric outlets with safety plugs.
- C. Remove toxic substances from low areas.
- D. Test the temperature of water before bathing.
Correct answer: D
Rationale: Testing the temperature of water before bathing is crucial to prevent burns, which is a significant risk for infants due to their sensitive skin. Infants have delicate skin that can easily be burned by water that is too hot. Testing the water temperature before bathing ensures that the water is at a safe and comfortable level for the infant. While choices A, B, and C are also important in accident prevention, such as reducing choking hazards, preventing electric shocks, and avoiding poisoning, testing the water temperature before bathing is the most immediate and direct action to prevent harm to the infant during bathing.
4. A client who has a new prescription for warfarin (Coumadin) is receiving discharge instructions. Which statement indicates the client understands the teaching?
- A. I will take my warfarin at the same time every day.
- B. I should increase my intake of green leafy vegetables.
- C. I should use a soft-bristled toothbrush while taking this medication.
- D. I should avoid drinking alcohol while taking this medication.
Correct answer: C
Rationale: The correct answer is C: 'I should use a soft-bristled toothbrush while taking this medication.' Using a soft-bristled toothbrush is crucial as it helps prevent bleeding gums, which is a potential side effect of warfarin therapy. Option A about taking warfarin at the same time every day is a good practice but does not directly relate to preventing side effects. Option B suggesting an increase in green leafy vegetables can interfere with warfarin's anticoagulant effects due to their vitamin K content. Option D advising to avoid alcohol is generally recommended but is not directly related to the specific side effects of warfarin.
5. What is the most common cause of HHNS?
- A. Insulin overdose
- B. Removal of the adrenal gland
- C. Undiagnosed, untreated hyperpituitarism
- D. Undiagnosed, untreated diabetes mellitus
Correct answer: D
Rationale: The correct answer is D: Undiagnosed, untreated diabetes mellitus. Hyperosmolar hyperglycemic nonketotic syndrome (HHNS) is most commonly caused by undiagnosed and untreated diabetes mellitus. Insulin overdose (Choice A) is not a typical cause of HHNS; it is more related to hypoglycemia. Removal of the adrenal gland (Choice B) can lead to adrenal insufficiency but is not a common cause of HHNS. Undiagnosed, untreated hyperpituitarism (Choice C) is not a usual cause of HHNS; it is more related to pituitary hormone imbalances rather than hyperglycemia.