HESI LPN
HESI PN Exit Exam
1. What is the primary role of the sinoatrial (SA) node in the heart?
- A. Pacemaker of the heart
- B. Blood pressure regulation
- C. Electrical conduction delay
- D. Stimulating muscle contraction
Correct answer: A
Rationale: The correct answer is A: Pacemaker of the heart. The SA node, known as the natural pacemaker, initiates the electrical impulses that set the rhythm for the heartbeat. It is responsible for coordinating the heart's contractions by generating electrical signals at regular intervals. Choice B is incorrect as the SA node's primary function is not related to blood pressure regulation. Choice C is incorrect as the SA node does not cause electrical conduction delay but rather initiates and conducts the electrical impulses. Choice D is incorrect as the SA node does not directly stimulate muscle contraction but rather initiates the electrical events that lead to muscle contraction.
2. A child with glomerulonephritis is admitted in the acute edematous phase. Based on this diagnosis, which nursing intervention should the nurse plan to include in the child's plan of care?
- A. Recommend parents bring favorite snacks
- B. Encourage ambulation daily to the playroom
- C. Measure blood pressure every 4 to 6 hours
- D. Offer a selection of fresh fruit for each meal
Correct answer: C
Rationale: The correct answer is to measure blood pressure every 4 to 6 hours. Monitoring blood pressure frequently is crucial in managing glomerulonephritis, as hypertension is a common complication during the acute edematous phase. Choice A is incorrect as it does not address the specific needs of a child with glomerulonephritis. Choice B is incorrect as excessive activity may not be suitable during the acute phase, as rest and monitoring are more important. Choice D is incorrect as the focus should be on monitoring vital signs rather than meal options.
3. A full-term, 24-hour-old infant in the nursery regurgitates and suddenly turns cyanotic. Which immediate intervention should the PN implement?
- A. Stimulate the infant to cry
- B. Give oxygen by positive pressure
- C. Suction the oral and nasal passages
- D. Turn the infant onto the right side
Correct answer: C
Rationale: Suctioning the oral and nasal passages is the correct immediate intervention in this scenario. Regurgitation leading to cyanosis indicates a potential airway obstruction, which requires prompt action to clear. Stimulating the infant to cry (Choice A) may not address the underlying issue of airway obstruction. Giving oxygen by positive pressure (Choice B) can be beneficial, but clearing the airway obstruction takes precedence. Turning the infant onto the right side (Choice D) does not directly address the need to clear the airway.
4. The client with schizophrenia who continues to repeat the last words heard is exhibiting a sign of disturbed thought processes. Which nursing problem should the nurse document in the medical record?
- A. Altered sensory perception
- B. Impaired social interaction
- C. Risk for self-directed violence
- D. Disturbed thought processes
Correct answer: D
Rationale: The correct answer is D: Disturbed thought processes. Echolalia, the repetition of words, is a sign of disturbed thought processes commonly seen in clients with schizophrenia. It reflects a disorganization in thinking rather than a sensory perception issue (Choice A). Impaired social interaction (Choice B) refers to difficulties in relating to others, which is not the primary concern in echolalia. Risk for self-directed violence (Choice C) focuses on potential harm to self, which is separate from the repetitive behavior of echolalia.
5. During a routine prenatal visit at the antepartal clinic, a multipara at 35-weeks gestation presents with 2+ edema of the ankles and feet. Which additional information should the PN report to the RN?
- A. Due date
- B. Blood pressure
- C. Gravida and parity
- D. Fundal height
Correct answer: B
Rationale: Blood pressure is the most critical information to report to the RN in this scenario. The presence of edema, along with high blood pressure, can be indicative of preeclampsia, a severe condition in pregnancy. Monitoring blood pressure is essential for assessing the patient's condition and taking appropriate actions if necessary. Choices A, C, and D are not as urgent in this situation. The due date, gravida, and parity are important for overall assessment but do not address the immediate concern of potential preeclampsia. Fundal height is used to assess fetal growth and position but is not the priority when edema and high blood pressure are present.
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