HESI RN
Biology Practice Test
1. In the hierarchical organizational system, which of these is the most restrictive category?
- A. Genus
- B. Class
- C. Kingdom
- D. Species
Correct answer: D
Rationale: In the biological classification hierarchy, species is the most specific level, defining individual organisms that can interbreed. While genus, class, and kingdom are also categories in the hierarchy, they are broader and encompass a wider range of organisms compared to species. Genus groups together similar species, class groups similar orders, and kingdom is the broadest category grouping together similar phyla.
2. When monitoring a client for acute toxicity associated with bethanechol chloride (Urecholine), what sign should the nurse check for to indicate toxicity?
- A. Dry skin
- B. Dry mouth
- C. Bradycardia
- D. Signs of dehydration
Correct answer: C
Rationale: The correct answer is C: Bradycardia. Toxicity from bethanechol chloride (Urecholine) can lead to excessive muscarinic stimulation, resulting in manifestations like salivation, sweating, involuntary urination and defecation, bradycardia, and severe hypotension. When facing toxicity, treatment involves supportive measures and administering atropine sulfate subcutaneously or intravenously.
3. The nurse is caring for a client following a myelogram. Which assessment finding should the nurse report to the healthcare provider immediately?
- A. Complaint of headaches and stiff neck.
- B. Complaint of dizziness and nausea.
- C. Increased pain at the puncture site.
- D. Mild redness around the puncture site.
Correct answer: A
Rationale: The correct answer is A: Complaint of headaches and stiff neck. Headaches and stiff neck following a myelogram may indicate a cerebrospinal fluid (CSF) leak or other complications that require prompt medical attention. Reporting this finding immediately is crucial to prevent further complications. Choices B, C, and D are incorrect because while they may warrant monitoring and intervention, they are not as indicative of a potentially serious complication as the symptoms described in choice A.
4. Which of the following is a symptom of menopause?
- A. Bleeding per vagina
- B. Sleeping all the time
- C. Insomnia
- D. Increased concentration
Correct answer: C
Rationale: Insomnia is a common symptom of menopause. During menopause, hormonal changes can lead to sleep disturbances, including difficulty falling asleep or staying asleep. Choice A, 'Bleeding per vagina,' is not a typical symptom of menopause but should prompt further evaluation. Choice B, 'Sleeping all the time,' is not a common symptom of menopause; in fact, insomnia, rather than excessive sleep, is more prevalent. Choice D, 'Increased concentration,' is not a symptom of menopause; cognitive changes like forgetfulness or difficulty concentrating may occur, but increased concentration is not a typical manifestation.
5. The client was placed in restraints due to confusion while hospitalized. The family removes the restraints in the client's presence. After the family leaves, what should the nurse do first?
- A. Apply the restraints to ensure the client's safety.
- B. Reassess the client to determine if restraints are still necessary.
- C. Document the time the family departed and continue monitoring the client.
- D. Contact the healthcare provider for a new order.
Correct answer: B
Rationale: In this scenario, the nurse's initial action should be to reassess the client to determine if restraints are still necessary following their removal by the family. This reassessment is crucial to evaluate the client's current condition and the need for restraints before considering reapplication. By reassessing first, the nurse ensures that the client's safety is maintained while respecting their autonomy. While documentation and monitoring are important, reassessment takes priority to provide individualized and appropriate care to the client. Contacting the healthcare provider for a new order should occur after reassessment if restraints are deemed necessary.