HESI LPN
HESI Fundamental Practice Exam
1. At a mobile screening clinic, a nurse is assessing a client who reports a history of a heart murmur due to aortic stenosis. To auscultate the aortic valve, where should the nurse place the stethoscope?
- A. Second intercostal space to the right of the sternum
- B. Fifth intercostal space to the left of the sternum
- C. Third intercostal space to the left of the sternum
- D. Fourth intercostal space at the midclavicular line
Correct answer: A
Rationale: The correct location to auscultate the aortic valve is the second intercostal space to the right of the sternum. This area corresponds to the aortic valve area where aortic valve sounds are best heard. Choices B, C, and D are incorrect for auscultating the aortic valve. The fifth intercostal space to the left of the sternum is where the mitral valve is best heard, the third intercostal space to the left of the sternum is where the pulmonic valve is best heard, and the fourth intercostal space at the midclavicular line is where the tricuspid valve is best auscultated.
2. A nurse on a medical-surgical unit is caring for a group of clients. The nurse should identify that which of the following clients is at risk for hypovolemia?
- A. A client who has nasogastric suctioning
- B. A client who has chronic constipation
- C. A client who has syndrome of inappropriate antidiuretic hormone
- D. A client who took a toxic dose of sodium bicarbonate antacids
Correct answer: A
Rationale: The correct answer is A. Nasogastric suctioning can lead to hypovolemia due to the loss of gastric fluids. Chronic constipation and syndrome of inappropriate antidiuretic hormone (SIADH) are not typically associated with hypovolemia. A toxic dose of sodium bicarbonate antacids may lead to metabolic alkalosis, not hypovolemia.
3. When assessing a client’s heart sounds, the nurse hears a scratching sound during both systole and diastole. These sounds become more distinct when the nurse has the client sit up and lean forward. The nurse should document the presence of a:
- A. Pericardial friction rub
- B. Heart murmur
- C. S3 heart sound
- D. S4 heart sound
Correct answer: A
Rationale: A pericardial friction rub is characterized by a scratching sound that occurs during both systole and diastole. It becomes more distinct when the client is sitting up and leaning forward. This indicates an inflammation of the pericardial sac rubbing against the layers of the heart. Heart murmurs (choice B) are abnormal heart sounds caused by turbulent blood flow, not by friction like in a pericardial rub. S3 and S4 heart sounds (choices C and D) are additional heart sounds related to abnormal ventricular filling, not to pericardial friction rubs.
4. A healthcare professional is preparing to insert an IV catheter into a client’s arm prior to initiating IV fluid therapy. Which of the following interventions should the healthcare professional implement to prevent infection?
- A. Thread the catheter up to the hub
- B. Use a sterile technique throughout the procedure
- C. Clean the insertion site with alcohol only
- D. Use gloves but not a mask during the procedure
Correct answer: B
Rationale: Using a sterile technique throughout the procedure is essential to prevent infection when inserting an IV catheter. This includes maintaining aseptic conditions, using sterile equipment, and following proper hand hygiene practices. Choice A is incorrect because threading the catheter up to the hub does not specifically address infection prevention. Choice C is incorrect as cleaning the insertion site with alcohol only may not provide adequate disinfection, as it is essential to use an antiseptic solution to reduce microbial load. Choice D is incorrect as wearing gloves alone is not sufficient protection against infection; a mask should also be worn to prevent the spread of microorganisms through respiratory secretions.
5. 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.
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