HESI LPN
Fundamentals HESI
1. A nurse is observing a newly licensed nurse providing care for a client who reports pain. The nurse checked the client’s MAR and noted the last dose of pain medication was administered 6 hours ago. The prescription specifies administration every 4 hours PRN for pain. The nurse administered the medication and followed up with the client 40 minutes later, who reported improvement. What did the newly licensed nurse overlook in the nursing process?
- A. Assessment
- B. Planning
- C. Intervention
- D. Evaluation
Correct answer: A
Rationale: The correct answer is 'Assessment.' In the nursing process, assessment is the first step, crucial before any intervention. Assessment involves gathering data about the client's condition to establish a baseline for evaluating responses to interventions. In this scenario, the newly licensed nurse missed assessing the client's pain intensity, location, quality, and other relevant factors before administering the pain medication. While the follow-up evaluation with the client is commendable, it cannot replace the initial assessment. Planning involves setting goals and outcomes, intervention is the action taken to achieve these goals, and evaluation assesses the client's response to the intervention.
2. Which type of Leukocyte is involved with allergic responses and the destruction of parasitic worms?
- A. Neutrophils
- B. Lymphocytes
- C. Eosinophils
- D. Monocytes
Correct answer: C
Rationale: Eosinophils are the correct answer. Eosinophils are specialized white blood cells that play a crucial role in allergic responses and combating parasitic infections. They release substances to destroy parasites and modulate allergic reactions. Neutrophils (Choice A) are mainly involved in fighting bacterial infections. Lymphocytes (Choice B) play a key role in the immune response, including antibody production, but are not primarily responsible for combating parasites or allergic responses. Monocytes (Choice D) are involved in immune defense, differentiating into macrophages or dendritic cells, but they are not mainly associated with allergic responses or parasitic worm destruction.
3. During a neurological assessment, a healthcare provider is evaluating a client's balance. Which of the following examinations should the provider use for this purpose?
- A. Romberg test
- B. Deep tendon reflexes
- C. Mini-Mental State Examination
- D. Babinski reflex
Correct answer: A
Rationale: The Romberg test is utilized to assess the client's balance and proprioception by having them stand with their eyes closed. This test helps evaluate sensory ataxia, a condition where an individual's balance is affected due to impaired sensory input. Deep tendon reflexes (Choice B) are assessed by tapping a tendon with a reflex hammer to evaluate the integrity of the spinal cord and peripheral nerves; this is not directly related to balance assessment. The Mini-Mental State Examination (Choice C) is a cognitive screening tool used to assess cognitive impairment or dementia, not balance. The Babinski reflex (Choice D) is elicited by stroking the sole of the foot to assess neurologic function, particularly in the corticospinal tract, and is not specific to balance evaluation.
4. Which electrolyte imbalance is most likely to cause cardiac arrhythmias?
- A. Hyperkalemia
- B. Hypocalcemia
- C. Hypernatremia
- D. Hypokalemia
Correct answer: A
Rationale: Hyperkalemia is the correct answer as it can lead to dangerous cardiac arrhythmias due to its effects on the electrical conduction of the heart. High levels of potassium can disrupt the normal electrical activity of the heart, potentially leading to life-threatening arrhythmias. Hypocalcemia (choice B) is not the most likely cause of cardiac arrhythmias compared to hyperkalemia. Hypernatremia (choice C), referring to high sodium levels, is not directly associated with causing cardiac arrhythmias. While hypokalemia (choice D), low potassium levels, can also lead to cardiac arrhythmias, hyperkalemia is the more likely culprit in causing severe disturbances in heart rhythm.
5. A client with diabetes mellitus is scheduled for surgery. What is the most important preoperative instruction the nurse should provide?
- A. Take your insulin as usual
- B. Do not eat or drink after midnight
- C. Monitor your blood glucose closely
- D. Bring your glucose meter to the hospital
Correct answer: B
Rationale: The most important preoperative instruction for a client with diabetes mellitus scheduled for surgery is to instruct them not to eat or drink after midnight. This instruction is crucial to maintain NPO (nothing by mouth) status before surgery, reducing the risk of aspiration during anesthesia. While taking insulin as usual (Choice A) is important, doses can be adjusted by the healthcare team. Monitoring blood glucose closely (Choice C) is essential but not as critical preoperatively. Bringing a glucose meter to the hospital (Choice D) can be helpful but is not as vital as maintaining NPO status.