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. When assessing bowel sounds, what action should a healthcare professional take?
- A. Listen to the bowel sounds before performing abdominal palpation
- B. Auscultate for 2 minutes to determine if bowel sounds are present
- C. Place the diaphragm of the stethoscope over each quadrant
- D. Ask the client to cough while auscultating
Correct answer: C
Rationale: When assessing bowel sounds, it is crucial to listen before performing any palpation as palpation can alter bowel sounds. The correct technique involves placing the diaphragm of the stethoscope over each quadrant of the abdomen to listen for bowel sounds. Auscultating for at least 5 minutes is recommended to accurately determine the presence or absence of bowel sounds. Asking the client to cough is not necessary for assessing bowel sounds and may not provide relevant information. Therefore, option C is the correct choice as it follows the appropriate procedure for assessing bowel sounds.
3. The healthcare professional is preparing to administer a tuberculin skin test. Which site is most appropriate for this injection?
- A. Deltoid muscle
- B. Vastus lateralis muscle
- C. Abdomen
- D. Inner forearm
Correct answer: D
Rationale: The inner forearm is the most appropriate site for administering a tuberculin skin test. This test requires an intradermal injection, which is administered just below the surface of the skin. The inner forearm provides a flat, easily accessible surface for this type of injection. Choices A, B, and C are incorrect because the tuberculin skin test should not be administered into a muscle (deltoid muscle or vastus lateralis muscle) or into the abdomen. The test requires precise placement within the dermal layer of the skin on the inner forearm to accurately assess for a reaction.
4. What immediate action should a healthcare worker take after being stuck in the hand by an exposed needle?
- A. Look up the policy on needle sticks
- B. Contact employee health services
- C. Immediately wash the hands thoroughly with soap and water
- D. Notify the supervisor and risk management
Correct answer: C
Rationale: The correct immediate action for a healthcare worker who has been stuck by an exposed needle is to wash the hands thoroughly with soap and water to reduce the risk of infection. This helps to remove any potential pathogens introduced by the needle stick. Looking up the policy on needle sticks (Choice A) is important but not the immediate action required. Contacting employee health services (Choice B) and notifying the supervisor and risk management (Choice D) are crucial steps to take, but they should follow the initial step of washing the hands to mitigate the risk of infection.
5. A client with a history of alcoholism is admitted with confusion and ataxia. The LPN/LVN recognizes that these symptoms may be related to a deficiency in which vitamin?
- A. Vitamin A
- B. Vitamin C
- C. Vitamin D
- D. Vitamin B1 (Thiamine)
Correct answer: D
Rationale: The correct answer is Vitamin B1 (Thiamine). Vitamin B1 deficiency, also known as Thiamine deficiency, is common in clients with a history of alcoholism. Thiamine is essential for proper brain function, and its deficiency can lead to neurological symptoms such as confusion and ataxia. Vitamin A, C, and D deficiencies do not typically present with confusion and ataxia in the context of alcoholism. Vitamin A deficiency mainly affects vision, Vitamin C deficiency leads to scurvy with symptoms like bleeding gums, and Vitamin D deficiency is associated with bone disorders. Therefore, they are not the correct choices in this scenario.
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