HESI RN
Biology Test
1. During which stage of photosynthesis is solar energy converted to chemical energy?
- A. During phosphate synthesis
- B. During light reactions
- C. During the Krebs cycle
- D. During the Calvin cycle
Correct answer: B
Rationale: The correct answer is B, during the light reactions. During the light reactions of photosynthesis, solar energy is absorbed by chlorophyll and converted into chemical energy in the form of ATP and NADPH. Choice A is incorrect as phosphate synthesis does not involve the conversion of solar energy. Choice C, the Krebs cycle, is a part of cellular respiration, not photosynthesis. Choice D, the Calvin cycle, is responsible for fixing carbon dioxide into carbohydrates and does not involve the direct conversion of solar energy to chemical energy.
2. Following a unilateral adrenalectomy, Nurse Betty would assess for hyperkalemia indicated by which of the following signs?
- A. Muscle weakness
- B. Tremors
- C. Diaphoresis
- D. Constipation
Correct answer: A
Rationale: Muscle weakness is a classic manifestation of hyperkalemia, an elevated level of potassium in the blood. After an adrenalectomy, where one adrenal gland is removed, there may be a risk of hyperkalemia due to altered hormone regulation. Tremors (Choice B) are not typically associated with hyperkalemia but may be seen in conditions like hypocalcemia. Diaphoresis (Choice C) and constipation (Choice D) are not specific indicators of hyperkalemia. Diaphoresis is excessive sweating and constipation is a common gastrointestinal issue, neither directly related to potassium imbalances.
3. During cellular respiration, glycolysis takes place in the cytosol and produces how many molecules of ATP, pyruvate, and NADH?
- A. two, two, two
- B. two, four, two
- C. two, four, four
- D. four, four, four
Correct answer: A
Rationale: Glycolysis, the first step of cellular respiration, takes place in the cytosol and produces two molecules each of ATP, pyruvate, and NADH. Therefore, the correct answer is A. Choice B is incorrect as glycolysis produces two ATP molecules, not four. Choice C is incorrect as it incorrectly states that glycolysis produces four molecules of pyruvate and NADH. Choice D is incorrect because glycolysis produces two molecules of ATP, not four.
4. Following an emergency Cesarean delivery, the nurse encourages the new mother to breastfeed her newborn. The client asks why she should breastfeed now. Which information should the nurse provide?
- A. To bond with the baby.
- B. To help the baby latch on better.
- C. To stimulate contraction of the uterus.
- D. To promote milk production.
Correct answer: C
Rationale: The correct answer is C: 'To stimulate contraction of the uterus.' After delivery, breastfeeding helps in stimulating the release of oxytocin, which triggers the contraction of the uterus. This contraction is crucial to prevent uterine hemorrhage and facilitate the involution process. Choices A, B, and D are incorrect. While breastfeeding can indeed help in bonding with the baby and promoting milk production, in the immediate postpartum period after a Cesarean section, the priority is to ensure uterine contraction to prevent complications.
5. A client with acute pancreatitis is experiencing severe abdominal pain. Which intervention should the nurse implement to help manage the client's pain?
- A. Encourage deep breathing exercises
- B. Place the client in a side-lying position with knees bent
- C. Administer oral analgesics as prescribed
- D. Encourage the client to take small sips of water
Correct answer: B
Rationale: The correct intervention to help manage the client's pain in acute pancreatitis is to place the client in a side-lying position with knees bent. This position can alleviate abdominal pain by reducing pressure on the pancreas and improving comfort. Encouraging deep breathing exercises (Choice A) is beneficial for other conditions but may not directly help alleviate abdominal pain in pancreatitis. Administering oral analgesics (Choice C) may be necessary but is not the initial priority for managing pain in acute pancreatitis. Encouraging the client to take small sips of water (Choice D) is important for hydration but is not directly related to pain management in this context.