HESI LPN
HESI Fundamentals Test Bank
1. A client has a prescription for 5 units of regular insulin and 10 units of NPH insulin to mix together and administer subcutaneously. Determine the correct order of steps for this procedure.
- A. Inject 5 units of air into the bottle of regular insulin
- B. Withdraw the correct dose of NPH insulin from the bottle
- C. Inject 10 units of air into the bottle of NPH insulin
- D. Withdraw the correct dose of regular insulin from the bottle
Correct answer: B
Rationale: The correct order of steps for this procedure is to first inject air into the NPH insulin bottle to prevent vacuum formation. After injecting air into the NPH insulin, the next step is to withdraw the correct dose of regular insulin from its bottle. This sequence ensures that the regular insulin is drawn after the NPH insulin, preventing contamination and ensuring accurate dosing. Therefore, choice B is correct. Choices A, C, and D are incorrect because air should be injected into the NPH insulin first, not the regular insulin, and the doses should be withdrawn in the appropriate order to maintain the integrity and potency of each insulin type.
2. Which statement by the mother indicates that the mother understands safety precautions with her four-month-old infant and her 4-year-old child?
- A. I secure the infant car seat in the back seat facing backwards.
- B. I place my infant in the middle of the living room floor on a blanket to play with my 4-year-old while I make supper in the kitchen.
- C. My sleeping baby looks adorable in the crib with the little buttocks up in the air while the four-year-old naps on the sofa.
- D. I have the 4-year-old hold and help feed the four-month-old a bottle in the kitchen while I make supper.
Correct answer: D
Rationale: Choice D is the correct answer because having the 4-year-old help feed the four-month-old a bottle in the kitchen while the mother makes supper shows supervision of the infant by the older child in a safe environment. This choice indicates that the mother understands safety precautions by involving the older child in a caregiving task under her supervision. Choices A, B, and C are incorrect because they involve unsafe practices such as placing the infant on the floor unsupervised, positioning the infant car seat in the front seat, and not providing direct supervision of the children during naptimes.
3. An 18-year-old client is admitted to the intensive care unit from the emergency room following a diving accident. The injury is suspected to be at the level of the 2nd cervical vertebra. The nurse's priority assessment should be
- A. Response to stimuli
- B. Bladder control
- C. Respiratory function
- D. Muscle strength
Correct answer: C
Rationale: Injuries at the level of the 2nd cervical vertebra can affect the phrenic nerve, leading to potential impairment of respiratory function. Assessing respiratory function is crucial as compromised breathing can quickly escalate to life-threatening situations. While response to stimuli is important, ensuring adequate oxygenation takes precedence due to the immediate threat to life. Bladder control may be affected by spinal cord injuries at higher levels, but it is not the priority in this scenario. Muscle strength is a potential consequence of cervical spinal cord injury, but assessing respiratory function is more critical in the acute phase.
4. A client with chronic kidney disease is being assessed. Which of the following laboratory values would be most concerning?
- A. Serum creatinine of 3.0 mg/dL
- B. Serum potassium of 6.5 mEq/L
- C. Blood urea nitrogen (BUN) of 45 mg/dL
- D. Hemoglobin of 10 g/dL
Correct answer: B
Rationale: In a client with chronic kidney disease, elevated serum potassium levels (hyperkalemia) are the most concerning finding. Hyperkalemia can lead to life-threatening cardiac dysrhythmias. Monitoring and managing serum potassium levels are crucial in patients with kidney disease to prevent severe complications. While elevated creatinine (Choice A) and BUN (Choice C) are indicative of impaired kidney function, hyperkalemia poses a more immediate threat to the client's health. Hemoglobin levels (Choice D) can be affected by chronic kidney disease but are not as acutely dangerous as severe hyperkalemia.
5. An 80-year-old client admitted with a diagnosis of a possible cerebral vascular accident has had a blood pressure ranging from 180/110 to 160/100 over the past 2 hours. The nurse has also noted increased lethargy. Which assessment finding should the nurse report immediately to the healthcare provider?
- A. Slurred speech
- B. Incontinence
- C. Muscle weakness
- D. Rapid pulse
Correct answer: A
Rationale: Slurred speech is a classic sign of a worsening stroke, suggesting a potential blockage or hemorrhage affecting speech centers in the brain. Prompt reporting of this symptom to the healthcare provider is crucial for immediate evaluation and intervention. While incontinence (Choice B) is important to monitor, it is not considered an immediate priority over slurred speech in this context. Muscle weakness (Choice C) and rapid pulse (Choice D) are also relevant in stroke assessment, but slurred speech takes precedence due to its strong association with neurological deficits in the setting of a possible cerebral vascular accident.
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