HESI RN
Biology Test
1. What must first occur before a cell can be divided to grow, develop, and reproduce organisms?
- A. RNA replication
- B. DNA replication
- C. Gene replication
- D. Chromosome replication
Correct answer: B
Rationale: The correct answer is B: DNA replication. Before a cell can divide to grow, develop, and reproduce organisms, DNA replication must occur. This process ensures that each daughter cell receives an identical set of genetic information. Choices A, C, and D are incorrect because while RNA, genes, and chromosomes are essential components of cell division, DNA replication is the specific process that must first occur to ensure accurate transmission of genetic material.
2. A client is admitted with acute kidney injury (AKI) and a urine output of 2000 mL/day. What is the major concern of the nurse regarding this client’s care?
- A. Edema and pain
- B. Electrolyte and fluid imbalance
- C. Cardiac and respiratory status
- D. Mental health status
Correct answer: B
Rationale: The major concern for a client admitted with acute kidney injury (AKI) and a high urine output of 2000 mL/day is electrolyte and fluid imbalance. In AKI, there may be an inflammatory cause leading to proteins entering the glomerulus, resulting in fluid being held in the filtrate and causing polyuria. Electrolyte loss and fluid balance are critical to monitor and manage in AKI cases. Edema and pain are not typically associated with fluid loss. While changes in cardiac, respiratory, and mental health status can occur if electrolyte imbalance is not addressed, the primary focus should be on managing electrolyte and fluid balance to prevent further complications.
3. What is the best response for the nurse when a 2-year-old boy begins to cry as the mother starts to leave?
- A. Let me read this book to you.
- B. Two-year-olds usually stop crying the minute the parent leaves.
- C. Now be a big boy. Mommy will be back soon.
- D. Let's wave bye-bye to mommy.
Correct answer: D
Rationale: The best response for the nurse in this situation is to help the child understand that the separation is temporary. Waving bye-bye to mommy can be reassuring to the child and make the separation process easier. It acknowledges the child's feelings while providing a positive and comforting interaction. Choice A may distract the child temporarily but doesn't address the underlying issue of separation anxiety. Choice B is inaccurate as children may continue to cry even after the parent leaves. Choice C diminishes the child's emotions and doesn't offer a supportive approach.
4. A nurse is reinforcing teaching to transition from breastfeeding to whole milk with the parents of an infant. Which of the following months of age should the nurse recommend for transitioning the infant to whole milk?
- A. 6 months
- B. 8 months
- C. 10 months
- D. 12 months
Correct answer: D
Rationale: The correct answer is D: 12 months. Whole milk should be introduced at 12 months to ensure the infant's digestive system can handle the increased fat content. Introducing whole milk before 12 months can lead to digestive issues and potential allergies. Choices A, B, and C are incorrect because transitioning to whole milk before 12 months is not recommended for infants due to their digestive system still developing and not being able to handle the higher fat content of whole milk.
5. A client with deep vein thrombosis (DVT) is prescribed heparin. What lab value should the nurse monitor to assess the effectiveness of the therapy?
- A. Prothrombin time (PT).
- B. Partial thromboplastin time (PTT).
- C. International Normalized Ratio (INR).
- D. Hemoglobin and hematocrit.
Correct answer: B
Rationale: The correct answer is B: Partial thromboplastin time (PTT). PTT is the lab value used to monitor the effectiveness of heparin therapy in clients with DVT. It measures the intrinsic pathway of coagulation and is prolonged by heparin therapy. Prothrombin time (PT) and International Normalized Ratio (INR) are primarily used to monitor warfarin therapy, not heparin. Checking hemoglobin and hematocrit levels is important but does not directly assess the effectiveness of heparin therapy in DVT.