HESI LPN
HESI PN Exit Exam 2024
1. Which of the following is the most effective way to prevent the spread of infection in a healthcare setting?
- A. Using sterile gloves
- B. Wearing a face mask
- C. Performing hand hygiene
- D. Using disposable equipment
Correct answer: C
Rationale: Performing hand hygiene is the most effective way to prevent the spread of infection in a healthcare setting. Hand hygiene helps remove pathogens that could be transmitted through direct contact, making it a crucial practice in infection control. While using sterile gloves and disposable equipment are important in certain situations, they do not address the potential transmission of pathogens through direct contact, unlike hand hygiene. Wearing a face mask is important for respiratory precautions but may not be as effective as hand hygiene in preventing the spread of infections through direct contact.
2. Which type of isolation precaution is required for a patient with tuberculosis (TB)?
- A. Droplet precautions
- B. Contact precautions
- C. Airborne precautions
- D. Standard precautions
Correct answer: C
Rationale: The correct answer is C: Airborne precautions. Tuberculosis (TB) is transmitted via airborne particles, thus requiring airborne precautions to prevent the spread of infection. This includes using an N95 respirator to filter out small infectious particles. Droplet precautions (Choice A) are used for diseases that spread through large respiratory droplets. Contact precautions (Choice B) are for direct or indirect contact with the patient or their environment. Standard precautions (Choice D) are used for all patients to prevent the spread of infection through blood, bodily fluids, non-intact skin, and mucous membranes.
3. Which action should the PN implement when using standard precautions to provide client care?
- A. Apply sterile gloves to obtain a finger stick blood sample
- B. Wear clean exam gloves to perform perineal catheter care
- C. Replace the needle cap after giving an intramuscular injection
- D. Wear a paper gown to prevent transmission of droplet pathogens
Correct answer: B
Rationale: The correct answer is B. When using standard precautions, healthcare providers should wear clean exam gloves to perform perineal catheter care. This approach helps prevent the transmission of pathogens and ensures the safety of both the client and the healthcare provider. Choice A is incorrect because applying sterile gloves for a finger stick blood sample is unnecessary when non-sterile gloves would suffice. Choice C is incorrect because replacing the needle cap after giving an intramuscular injection is not directly related to standard precautions. Choice D is incorrect because wearing a paper gown is not a standard precaution for preventing the transmission of droplet pathogens.
4. What is the primary role of the sinoatrial (SA) node in the heart?
- A. Pacemaker of the heart
- B. Blood pressure regulation
- C. Electrical conduction delay
- D. Stimulating muscle contraction
Correct answer: A
Rationale: The correct answer is A: Pacemaker of the heart. The SA node, known as the natural pacemaker, initiates the electrical impulses that set the rhythm for the heartbeat. It is responsible for coordinating the heart's contractions by generating electrical signals at regular intervals. Choice B is incorrect as the SA node's primary function is not related to blood pressure regulation. Choice C is incorrect as the SA node does not cause electrical conduction delay but rather initiates and conducts the electrical impulses. Choice D is incorrect as the SA node does not directly stimulate muscle contraction but rather initiates the electrical events that lead to muscle contraction.
5. To accommodate a patient who is an Orthodox Jew, you would assure that her diet does not include which of the following?
- A. Any combination of meat and milk at the same meal
- B. Fish with scales
- C. Salmon
- D. Grape juice
Correct answer: A
Rationale: The correct answer is A. Orthodox Jewish dietary laws prohibit mixing meat and dairy in the same meal, so to accommodate an Orthodox Jew, you should ensure that their diet does not include any combination of meat and milk at the same meal. Choices B, C, and D are not prohibited in a kosher diet. Fish with scales, including salmon, are typically kosher, and grape juice is also permissible under kosher guidelines if certified. Therefore, options B, C, and D are acceptable in an Orthodox Jewish diet, while option A contradicts their dietary laws.
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