HESI LPN
HESI PN Exit Exam 2024 Quizlet
1. The PN and UAP enter a client's room and find the client lying on the bed. The PN determines that the client is unresponsive. Which instruction should the PN give the UAP first?
- A. Obtain emergency help
- B. Feel for a carotid pulse
- C. Bring a glucometer to the room
- D. Check the blood pressure
Correct answer: A
Rationale: The correct answer is to instruct the UAP to obtain emergency help first. When a client is unresponsive, it could indicate a life-threatening condition that requires immediate intervention. Ensuring emergency help is on the way is the priority to address the potentially critical situation. Feeling for a carotid pulse, bringing a glucometer, or checking the blood pressure are important assessments but should come after taking steps to secure immediate assistance.
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. A dispersion consists of a solute dispersed through a dispersing vehicle. Which of the following dispersions is a liquid for topical application that contains insoluble solids or liquids?
- A. Ointment
- B. Lotion
- C. Paste
- D. Gel
Correct answer: B
Rationale: The correct answer is B, 'Lotion.' A lotion is a liquid dispersion that contains insoluble solids or liquids for topical application. Ointments are more semi-solid and occlusive, pastes are thicker and contain higher concentrations of solids, and gels have a jelly-like consistency due to their three-dimensional network structure. Therefore, among the options, a lotion is the most suitable choice for containing insoluble solids or liquids for topical application.
4. In which condition is the 'butterfly rash' most commonly seen?
- A. Systemic lupus erythematosus
- B. Rheumatoid arthritis
- C. Psoriasis
- D. Dermatomyositis
Correct answer: A
Rationale: The correct answer is A: Systemic lupus erythematosus (SLE). The 'butterfly rash' across the cheeks and nose is a classic sign of SLE, an autoimmune disease. This rash is a key dermatological manifestation of SLE, often triggered or worsened by exposure to sunlight. Choices B, C, and D are incorrect because the 'butterfly rash' is not commonly associated with rheumatoid arthritis, psoriasis, or dermatomyositis.
5. What is the function of the enzyme lactase in the digestive system?
- A. Breaks down lactose into glucose and galactose
- B. Breaks down proteins into amino acids
- C. Converts starch into maltose
- D. Breaks down fats into fatty acids
Correct answer: A
Rationale: The correct answer is A: 'Breaks down lactose into glucose and galactose.' Lactase is an enzyme in the small intestine that specifically breaks down lactose, the sugar found in milk, into glucose and galactose for absorption. Choice B is incorrect because proteins are broken down into amino acids by protease enzymes. Choice C is incorrect because the enzyme amylase converts starch into maltose. Choice D is incorrect as lipase enzymes break down fats into fatty acids.
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