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 is postoperative is using an incentive spirometer. Into which of the following positions should the nurse place the client?
- A. Side-lying
- B. Supine
- C. Semi-Fowler’s
- D. Trendelenburg
Correct answer: C
Rationale: The correct position for a postoperative client using an incentive spirometer is the Semi-Fowler’s position. Placing the client in Semi-Fowler’s or high-Fowler’s position maximizes lung expansion and the effectiveness of the incentive spirometer. Side-lying may not provide optimal lung expansion. The supine position is not ideal for postoperative clients using incentive spirometers as it may limit lung expansion. The Trendelenburg position is not recommended due to potential complications postoperatively.
3. During an integumentary assessment for a group of clients, a healthcare professional notes various skin findings. Which of the following findings should the professional recognize as requiring immediate intervention?
- A. Pallor
- B. Cyanosis
- C. Jaundice
- D. Erythema
Correct answer: B
Rationale: Cyanosis, a bluish discoloration of the skin, indicates inadequate oxygenation and requires immediate intervention. It suggests a severe lack of oxygen in the blood, which can be life-threatening. Pallor and jaundice are concerning findings but may not indicate an immediate life-threatening situation. Pallor can be a sign of anemia or low blood pressure, while jaundice may indicate liver dysfunction. Erythema, which is redness of the skin, is typically not an emergency and can be caused by various factors such as inflammation or increased blood flow to the area.
4. A client is being treated for paranoid schizophrenia. When the client became loud and boisterous, the nurse immediately placed him in seclusion as a precautionary measure. The client willingly complied. The nurse's action
- A. May result in charges of unlawful seclusion and restraint
- B. Leaves the nurse vulnerable to charges of assault and battery
- C. Was appropriate given the client's history of violence
- D. Was necessary to maintain the therapeutic milieu of the unit
Correct answer: A
Rationale: Seclusion should only be used when necessary and with proper documentation; otherwise, it may be considered unlawful. Placing a client in seclusion without a clear indication or proper documentation could lead to legal ramifications, making choice A the correct answer. Choice B is incorrect because assault and battery do not apply in this scenario. Choice C is incorrect as there is no mention of the client posing an imminent threat due to a history of violence. Choice D is incorrect as seclusion should not be used solely to maintain the therapeutic milieu but rather for the safety of the client and others.
5. Before donning gloves to perform a procedure, proper hand hygiene is essential. The healthcare professional understands that the most important aspect of hand hygiene is the amount of:
- A. Temperature
- B. Time
- C. Friction
- D. Soap
Correct answer: C
Rationale: The correct answer is C: Friction. The amount of friction is crucial in effective hand hygiene to remove microorganisms. Rubbing hands together with friction helps to dislodge and remove dirt, oils, and microorganisms. While temperature and soap are important factors in hand hygiene, the mechanical action of friction plays a more significant role in physically removing contaminants. Time is also important in hand hygiene practice, but without adequate friction, the effectiveness of the process is compromised.
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