HESI RN
Biology Practice Test
1. What are the two primary products of photosynthesis?
- A. Sugar and oxygen
- B. Sugar and carbon dioxide
- C. Oxygen and nitrogen
- D. Nitrogen and carbon dioxide
Correct answer: A
Rationale: The correct answer is A: Sugar and oxygen. During photosynthesis, plants convert carbon dioxide and water into glucose (sugar) and oxygen using sunlight. Choice B, 'Sugar and carbon dioxide,' is incorrect because carbon dioxide is one of the reactants, not a product. Choice C, 'Oxygen and nitrogen,' is incorrect as nitrogen is not a direct product of photosynthesis. Choice D, 'Nitrogen and carbon dioxide,' is incorrect because nitrogen is not a product of photosynthesis, and carbon dioxide is a reactant.
2. A 32-year-old female client complains of severe abdominal pain each month before her menstrual period, painful intercourse, and painful defecation. Which additional history should the nurse obtain that is consistent with the client's complaints?
- A. Frequent urinary tract infections.
- B. Inability to get pregnant.
- C. Premenstrual syndrome.
- D. Chronic use of laxatives.
Correct answer: B
Rationale: The correct answer is B: 'Inability to get pregnant.' The symptoms described in the client's complaints, which include severe abdominal pain before menstruation, painful intercourse, and painful defecation, are indicative of endometriosis. Endometriosis is a condition characterized by the abnormal presence of endometrial tissue outside the uterus, commonly leading to infertility. While choices A, C, and D may be associated with other conditions, they are not directly related to the symptoms described by the client, making them incorrect choices. Frequent urinary tract infections may suggest a different issue, premenstrual syndrome does not typically present with severe abdominal pain, and chronic use of laxatives is not a typical symptom of endometriosis.
3. A client with angina pectoris is experiencing chest pain that radiates down the left arm. The nurse administers a sublingual nitroglycerin tablet to the client. The client's pain is unrelieved, and the nurse determines that the client needs another nitroglycerin tablet. Which of the following vital signs is most important for the nurse to check before administering the medication?
- A. Temperature
- B. Respirations
- C. Blood pressure
- D. Radial pulse rate
Correct answer: C
Rationale: The correct answer is checking the client's blood pressure (C) before administering another nitroglycerin tablet. Nitroglycerin can cause hypotension, and monitoring blood pressure is crucial to prevent a sudden drop in blood pressure, especially when giving another dose of nitroglycerin.
4. After a client with peripheral vascular disease undergoes a right femoral-popliteal bypass graft, their blood pressure drops from 124/80 to 94/62. What should the nurse assess first?
- A. IV fluid infusion.
- B. Pedal pulses.
- C. Nasal cannula oxygen flow rate.
- D. Capillary refill time.
Correct answer: B
Rationale: Assessing pedal pulses is crucial in this situation as it helps determine the adequacy of perfusion to the lower extremity following a bypass graft. A decrease in blood pressure postoperatively could indicate decreased perfusion, making the assessment of pedal pulses a priority to ensure proper circulation. Checking IV fluid infusion, nasal cannula oxygen flow rate, or capillary refill time are not the immediate priorities in this scenario and would not provide direct information about perfusion to the affected extremity.
5. What is the most important information for a nurse to obtain when an older female client expresses not deserving to eat due to lack of money?
- A. Client's thoughts about wanting to hurt herself
- B. Medication history for antipsychotic agents
- C. Availability of family members to provide meals
- D. Community resources to provide financial aid
Correct answer: A
Rationale: The correct answer is A: Client's thoughts about wanting to hurt herself. When a client expresses not deserving to eat due to lack of money, it raises concerns about her mental and emotional well-being. Assessing for suicidal ideation is crucial in this situation to ensure the client's immediate safety. Options B, C, and D are not the most critical information to obtain in this scenario. While medication history, family support, and community resources are important aspects of care, in this context, the client's mental health and risk of self-harm take precedence.