HESI RN
HESI Fundamentals Practice Exam
1. The healthcare professional is preparing to administer 10 mL of liquid potassium chloride through a feeding tube, followed by 10 mL of liquid acetaminophen. Which action should the healthcare professional include in this procedure?
- A. Dilute each of the medications with sterile water prior to administration.
- B. Mix the medications in one syringe before opening the feeding tube.
- C. Administer water between the doses of the two liquid medications.
- D. Withdraw any fluid from the tube before instilling each medication.
Correct answer: C
Rationale: To maintain patency and ensure proper medication delivery, water should be instilled into the feeding tube between administering the two medications. This helps prevent clogging of the tube and ensures that both medications are delivered effectively without interference from remnants of the previous medication. Diluting the medications with sterile water before administration (choice A) is unnecessary and may alter the medication concentration. Mixing the medications in one syringe (choice B) could lead to interactions or chemical reactions between the medications. Withdrawing fluid from the tube before instilling each medication (choice D) is not required and may increase the risk of tube displacement or misplacement.
2. After surgery, a patient has decreased cardiac output. What is a likely observation by the nurse?
- A. Decreased urine output
- B. Increased urine output
- C. Flushing of the skin
- D. Hyperventilation
Correct answer: A
Rationale: A decrease in cardiac output can lead to decreased blood flow to the kidneys, resulting in decreased urine output. The kidneys rely on adequate blood supply to filter waste and produce urine. Therefore, a decreased urine output is a common observation when cardiac output is reduced. Choices B, C, and D are incorrect. Increased urine output is not typically associated with decreased cardiac output; flushing of the skin is more related to vasodilation, and hyperventilation is not directly linked to decreased cardiac output.
3. The client with chronic obstructive pulmonary disease (COPD) is being taught pursed-lip breathing by the nurse. What is the purpose of this technique?
- A. To promote oxygenation by removing secretions.
- B. To reduce the amount of air trapped in the lungs.
- C. To increase the amount of carbon dioxide exhaled.
- D. To slow the respiratory rate and improve air exchange.
Correct answer: C
Rationale: Pursed-lip breathing is used to increase the amount of carbon dioxide exhaled (C) in clients with chronic obstructive pulmonary disease (COPD). By doing so, it helps prevent air trapping and enhances gas exchange, ultimately improving respiratory efficiency. While removing secretions (A) and reducing air trapping (B) can be associated benefits to some extent, the primary goal of pursed-lip breathing is to optimize carbon dioxide elimination and enhance breathing mechanics. Slowing the respiratory rate (D) is not the primary purpose of pursed-lip breathing.
4. The healthcare provider is caring for a client who is experiencing fluid volume deficit (dehydration). Which intervention should the healthcare provider implement to assess the effectiveness of fluid replacement therapy?
- A. Monitor daily weights
- B. Assess skin turgor
- C. Evaluate blood pressure trends
- D. Check urine specific gravity
Correct answer: A
Rationale: Monitoring daily weights is an accurate method to assess the effectiveness of fluid replacement therapy because changes in weight reflect changes in fluid balance. Fluid volume deficit can be objectively evaluated by monitoring daily weights as it provides a more precise measurement of fluid status over time. Assessing skin turgor (choice B) is subjective and may not provide as accurate or measurable data as monitoring daily weights. Evaluating blood pressure trends (choice C) can give information about circulatory status but may not directly reflect fluid volume status. Checking urine specific gravity (choice D) can indicate the concentration of urine but does not provide a comprehensive assessment of overall fluid balance like monitoring daily weights does.
5. A high school senior is complaining of a persistent cough and admits to smoking 10 to 15 cigarettes daily for the past year. He is convinced that he is hopelessly addicted to tobacco since he tried unsuccessfully to quit smoking last week. Which intervention is best for the nurse to implement?
- A. Encourage the student to associate with non-smokers only while attempting to stop smoking.
- B. Tell the student that he is still young and should continue trying various smoking cessation methods.
- C. Describe cigarette smoking as a habit that requires a strong will to overcome its addictiveness.
- D. Provide the student with the latest research data describing the long-term effects of tobacco use.
Correct answer: A
Rationale: Adolescents are particularly influenced by peers, so associating with non-smokers may help the student quit smoking. By being surrounded by non-smokers, the student is less likely to feel pressured to smoke and may be encouraged to adopt healthier behaviors. This intervention leverages the power of social influence to support smoking cessation efforts and create a more conducive environment for the student to quit smoking. Choices B, C, and D do not address the social aspect of smoking behavior and the influence of peers on smoking habits, making them less effective interventions in this case.
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