HESI LPN
HESI Fundamentals Study Guide
1. A client who is lactating is being taught about taking medications by a nurse. Which of the following actions should the nurse recommend to minimize the entry of medication into breast milk?
- A. Drink 8 oz of water with each dose of medication.
- B. Use medications that have a short half-life.
- C. Take each dose right after breastfeeding.
- D. Pump breast milk and discard it prior to feeding the newborn.
Correct answer: C
Rationale: Taking medications immediately after breastfeeding helps minimize the amount of medication that enters breast milk. By doing so, there is a longer interval between the medication intake and the next breastfeeding session, reducing the concentration of the medication in breast milk. Options A and B are incorrect as drinking water with medication or using medications with a short half-life do not directly minimize the entry of medication into breast milk. Option D is unnecessary and wasteful as pumping and discarding breast milk before feeding is not as effective as timing medication intake with breastfeeding to reduce medication transfer into breast milk.
2. The healthcare professional is preparing to administer potassium chloride intravenously to a client with hypokalemia. Which action is most important?
- A. Monitor the client's respiratory rate
- B. Check the client's urine output
- C. Administer the potassium chloride as a rapid IV push
- D. Dilute the potassium chloride in an appropriate IV solution
Correct answer: D
Rationale: The correct answer is to dilute the potassium chloride in an appropriate IV solution. Potassium chloride should never be administered as a rapid IV push as it can lead to severe complications, including cardiac arrhythmias. Diluting the medication and administering it slowly helps reduce the risk of adverse effects. Monitoring the client's respiratory rate (Choice A) and checking urine output (Choice B) are important aspects of patient assessment but not the most crucial when administering potassium chloride. Administering potassium chloride as a rapid IV push (Choice C) is dangerous and can result in serious harm to the client.
3. At 0345, you receive a call for a woman in labor. Upon arriving at the scene, you are greeted by a very anxious man who tells you that his wife is having her baby 'now.' This man escorts you into the living room where a 25-year-old woman is lying on the couch in obvious pain. Which of the following statements regarding crowning is true?
- A. Crowning represents the end of the second stage of labor.
- B. Crowning always occurs immediately after the amniotic sac has ruptured.
- C. It is safe to transport the patient during crowning if the hospital is close.
- D. Gentle pressure should be applied to the baby's head during crowning.
Correct answer: D
Rationale: During crowning, it is important to apply gentle pressure to the baby's head. This helps to prevent rapid delivery, which can lead to tearing and other complications for both the mother and the baby. Applying pressure also helps to control the delivery process, ensuring a safer and more controlled birth. Choices A, B, and C are incorrect because crowning does not signify the end of the second stage of labor, does not always occur immediately after the amniotic sac ruptures, and it is not safe to transport the patient during crowning, especially if the hospital is nearby, as rapid delivery can occur.
4. A female client is brought to the emergency department after police officers found her disoriented, disorganized, and confused. The RN also determines that the client is homeless and is exhibiting suspiciousness. The client's plan of care should include what priority problem?
- A. Acute confusion.
- B. Ineffective community coping.
- C. Disturbed sensory perception.
- D. Self-care deficit.
Correct answer: A
Rationale: Acute confusion is the priority problem as it directly affects the client's ability to process information and make safe decisions. In this scenario, the client's disorientation, disorganization, and confusion indicate an immediate cognitive issue that requires attention to ensure her safety and stability. Choices B, C, and D are not the priority problems in this case. Ineffective community coping, disturbed sensory perception, and self-care deficit, while important, are secondary to the client's acute confusion, which poses an immediate risk to her well-being.
5. A nurse at a screening clinic is assessing a client who reports a history of a heart murmur related to aortic valve stenosis. At which of the following anatomical areas should the nurse place the stethoscope to auscultate the aortic valve?
- A. Second intercostal space to the right of the sternum
- B. Fifth intercostal space at the midclavicular line
- C. Left sternal border
- D. Fifth intercostal space at the anterior axillary line
Correct answer: B
Rationale: The correct placement to auscultate the aortic valve is at the second intercostal space to the right of the sternum, which coincides with the aortic area. The choice stating 'Fifth intercostal space at the midclavicular line' is the correct answer for auscultating the aortic valve. Placing the stethoscope at the left sternal border would be more suitable for listening to the tricuspid valve. The fifth intercostal space at the anterior axillary line is the recommended area for auscultating the mitral valve. Therefore, choice B is the correct answer for assessing the aortic valve in a client with a history of a heart murmur related to aortic valve stenosis.