HESI LPN
HESI Fundamentals Study Guide
1. A healthcare professional is preparing to inject heparin subcutaneously for a client who is postoperative. Which of the following actions should the healthcare professional take?
- A. Use a 25-gauge needle.
- B. Select a site on the client’s abdomen.
- C. Use the Z-track technique to displace the skin on the injection site.
- D. Observe for bleb formation to confirm proper placement.
Correct answer: B
Rationale: For subcutaneous injections like heparin, a 25-27 gauge needle is recommended, making choice A incorrect. The abdomen is a commonly used site for heparin injection due to its consistent absorption and convenience, making choice B the correct answer. The Z-track technique is not necessary for subcutaneous injections, making choice C unnecessary. Observing for bleb formation is not a standard practice for confirming proper placement of subcutaneous heparin, making choice D incorrect. Therefore, the correct action is to select a site on the client's abdomen for the injection.
2. A female client with chronic back pain has been taking muscle relaxants and analgesics to manage the discomfort, but is now experiencing an acute episode of pain that is not relieved by this medication regime. The client tells the nurse that she does not want to have back surgery for a herniated intervertebral disk, and reports that she has found acupuncture effective in resolving past acute episodes. Which response is best for the nurse to provide?
- A. Surgery removes the disk and is the only treatment that can totally resolve the pain
- B. The medication regimen you previously used should be re-evaluated for dose adjustment
- C. Massage and hot pack treatments are less invasive and can provide temporary relief
- D. Acupuncture is a complementary therapy that is often effective for management of pain
Correct answer: D
Rationale: Acupuncture has been effective for the client previously, supporting continued use.
3. When reviewing car seat use with the parents of a 1-month-old infant, which of the following instructions should the nurse include?
- A. Use a car seat that has a three-point harness system.
- B. Position the car seat so that the infant is rear-facing.
- C. Secure the car seat in the front passenger seat of the vehicle.
- D. Convert to a booster seat after 12 months.
Correct answer: B
Rationale: The correct instruction for car seat use with a 1-month-old infant is to position the car seat so that the infant is rear-facing. This orientation provides the safest option for infants as it supports their head, neck, and spine. While using a car seat with a three-point harness system is appropriate for infants, placing the car seat in the front passenger seat is not recommended due to the presence of airbags, which can pose a risk to the infant in the event of deployment. Additionally, transitioning to a booster seat is not suitable at 12 months; infants should remain in rear-facing car seats until they outgrow the seat's height or weight limits, typically around 2 years of age.
4. A healthcare professional is planning to collect a liquid stool specimen from a client for ova and parasites. Inaccurate test results may result if the healthcare professional:
- A. Refrigerates the collected specimen
- B. Collects the specimen in a sterile container
- C. Delays the collection of the specimen
- D. Uses a non-contaminated collection container
Correct answer: A
Rationale: Refrigeration can kill the ova and parasites present in the stool specimen, leading to inaccurate test results. Storing the specimen in a cold environment can disrupt the integrity of the parasites and ova, affecting the accuracy of the test. Collecting the specimen in a sterile container (Choice B) is the correct procedure to prevent external contamination. Delaying the collection of the specimen (Choice C) may affect the freshness of the sample but does not directly impact the test results. Using a non-contaminated collection container (Choice D) is essential to maintain the sample's integrity but does not relate to the risk of killing ova and parasites through refrigeration.
5. While auscultating the anterior chest of a newly admitted patient, what would the nurse expect to hear?
- A. Normal breathing sounds
- B. Wheezing
- C. Crackles
- D. Stridor
Correct answer: A
Rationale: When auscultating the chest, normal breathing sounds are expected in a healthy individual. Wheezing is a high-pitched whistling sound that indicates narrowed airways and is often heard in conditions like asthma. Crackles are fine, crackling sounds heard on inspiration or expiration and are associated with conditions like pneumonia or heart failure. Stridor is a high-pitched, harsh sound heard during inspiration due to upper airway obstruction. Therefore, choices B, C, and D indicate abnormal respiratory findings, while choice A signifies normal breathing sounds.
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