HESI RN
Biology Practice Test
1. In meiosis, the chromosome number is reduced from:
- A. 46 to 23
- B. 46 to 33
- C. 28 to 14
- D. 24 to 12
Correct answer: A
Rationale: The correct answer is A: "46 to 23." In meiosis, the chromosome number is reduced by half to form gametes for sexual reproduction. In humans, where the diploid chromosome number is 46, meiosis results in haploid cells with 23 chromosomes. Choices B, C, and D are incorrect because they do not represent the correct reduction in chromosome number during meiosis.
2. A client is receiving teaching about a high-fiber diet to manage constipation. Which statement indicates the best choice for a high-fiber diet?
- A. Eating one medium apple is a good snack option.
- B. Selecting a ½ cup of sweet potatoes for starch is a great choice.
- C. Choosing a ½ cup of bran cereal for breakfast is ideal.
- D. Opting for 1 ounce of almonds when hungry midday is recommended.
Correct answer: C
Rationale: The correct answer is C because bran cereal is a high-fiber food that can effectively alleviate constipation by promoting regular bowel movements. Option A, an apple, while a healthy snack, may not provide as much fiber as bran cereal. Option B, sweet potatoes, are nutritious but may not be as high in fiber as bran cereal. Option D, almonds, are a good source of healthy fats and protein but do not provide as much fiber as bran cereal.
3. Why is honest information important in building a trusting relationship with adolescent patients?
- A. Encourage the adolescent to seek help outside of the school clinic.
- B. Keep disclosures from the adolescent confidential.
- C. Honest information ensures establishing a trusting relationship.
- D. Discourage minor adolescents from disclosing private concerns.
Correct answer: C
Rationale: Honesty is fundamental in building trust with adolescent patients as it helps create an environment where they feel safe to share their concerns openly. By being honest and maintaining confidentiality, healthcare providers can establish a strong and trusting relationship with adolescents, ultimately leading to better healthcare outcomes.
4. A CVA (stroke) patient goes into respiratory distress and is placed on a ventilator. The client’s daughter arrives with a durable power of attorney and a living will that indicates there should be no extraordinary life-saving measures. What action should the nurse take?
- A. Refer to the risk manager
- B. Notify the healthcare provider
- C. Discontinue the ventilator
- D. Review the medical record
Correct answer: B
Rationale: In this situation, the nurse should notify the healthcare provider. The healthcare provider needs to be informed to review the legal documents provided by the patient's daughter, such as the durable power of attorney and living will, which specify the patient's wishes regarding life-saving measures. The healthcare provider will be responsible for making the appropriate decision based on the legal documents and the patient's current condition. Referring to the risk manager (choice A) is not necessary as the issue at hand pertains to the patient's medical care. Discontinuing the ventilator (choice C) without healthcare provider input could go against the patient's wishes and legal documents. Reviewing the medical record (choice D) may not provide immediate guidance on the current situation and the patient's preferences regarding life-saving measures.
5. A 10-year-old child is admitted to the hospital with a diagnosis of acute glomerulonephritis. The nurse notes that the child has edema and elevated blood pressure. What is the nurse’s priority action?
- A. Administer antihypertensive medication as prescribed
- B. Monitor the child’s urine output
- C. Elevate the child’s legs to reduce edema
- D. Restrict the child’s fluid intake
Correct answer: A
Rationale: In a child with acute glomerulonephritis presenting with edema and elevated blood pressure, the priority action for the nurse is to administer antihypertensive medication as prescribed. Managing blood pressure is essential to prevent further complications associated with the condition, such as worsening kidney function and cardiovascular strain. Monitoring urine output is important but not the priority over managing elevated blood pressure. Elevating the child's legs may help with edema but addressing the elevated blood pressure takes precedence. Fluid intake restriction may be necessary in some cases, but it is not the immediate priority when managing acute glomerulonephritis with edema and hypertension.