HESI LPN
HESI Fundamentals Exam
1. 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.
2. A client who has just had a mastectomy has a closed wound suction device (hemovac) in place. Which nursing action will ensure proper operation of the device?
- A. Collapsing the device whenever it is 1/2 to 2/3 full of air.
- B. Emptying the device every 4 hours.
- C. Replacing the device every 24 hours.
- D. Keeping the device above the level of the surgical site.
Correct answer: A
Rationale: Collapsing the device when it is 1/2 to 2/3 full of air is the correct nursing action to ensure proper operation of a closed wound suction device (hemovac). This action maintains negative pressure, which is essential for proper suction and drainage of the wound. Emptying the device every 4 hours (Choice B) is not necessary as the focus should be on collapsing it appropriately. Replacing the device every 24 hours (Choice C) is not a standard practice unless indicated by the healthcare provider. Keeping the device above the level of the surgical site (Choice D) is not necessary for the device's proper operation; collapsing it to maintain negative pressure is the key action.
3. A nurse on a surgical unit is receiving a client who had abdominal surgery from the postanesthesia care unit. Which of the following assessments should the nurse make first?
- A. Airway
- B. Blood pressure
- C. Surgical site
- D. Level of consciousness
Correct answer: A
Rationale: The correct answer is to assess the airway first. Ensuring a clear and patent airway is crucial to maintaining adequate oxygenation and ventilation post-surgery. Assessing the airway takes precedence over other assessments as a compromised airway can lead to hypoxia and respiratory distress. Checking blood pressure, the surgical site, or level of consciousness are important but are secondary to ensuring the airway is clear and the client can breathe effectively.
4. A nurse on a medical-surgical unit is washing her hands prior to assisting with a surgical procedure. Which of the following actions by the nurse demonstrates proper surgical hand-washing techniques?
- A. The nurse washes with her hands held higher than her elbows.
- B. The nurse uses a brush to scrub under her nails.
- C. The nurse washes for at least 30 seconds.
- D. The nurse uses alcohol-based hand rub only.
Correct answer: A
Rationale: Proper surgical hand-washing technique involves keeping the hands higher than the elbows to prevent contamination. Washing with hands held lower than the elbows can lead to potential contamination. Using a brush to scrub under the nails is not recommended as it can cause microabrasions, increasing infection risk. While washing for at least 30 seconds is a good practice for thorough hand hygiene, hand positioning is critical during surgical hand-washing. Using alcohol-based hand rub alone is insufficient for surgical hand-washing as it may not effectively remove dirt, debris, and transient microorganisms.
5. A healthcare professional is caring for a group of clients on a medical-surgical unit. Which of the following clients is at increased risk for body-image disturbances?
- A. A client who had a laparoscopic appendectomy
- B. A client who had a mastectomy
- C. A client who had a left above-the-knee amputation
- D. A client who had a cardiac catheterization
Correct answer: C
Rationale: Clients who have undergone significant visible body changes, like amputation, are at increased risk for body-image disturbances. Amputation can have a profound impact on self-image and body perception due to the visible structural alteration. While conditions like laparoscopic appendectomy, mastectomy, and cardiac catheterization may also affect body image, they are less likely to cause significant disturbances compared to visible changes like amputation.
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