HESI LPN
HESI Fundamental Practice Exam
1. A healthcare professional is preparing to administer dextrose 5% in water (D5W) 1,000-mL IV to infuse over 10 hr. How many mL/hr should the IV infusion pump be set to deliver? (Round the answer to the nearest whole number. Do not use a trailing zero.)
- A. 100 mL/hr
- B. 150 mL/hr
- C. 75 mL/hr
- D. 50 mL/hr
Correct answer: A
Rationale: To infuse 1,000 mL over 10 hr, the IV pump should be set to deliver 100 mL/hr. This calculation is derived by dividing the total volume (1,000 mL) by the total time in hours (10 hr), resulting in the infusion rate of 100 mL/hr. Choices B, C, and D are incorrect as they do not accurately reflect the correct calculation for this scenario.
2. Seconal 0.1 gram PRN at bedtime is prescribed to a client for rest. The scored tablets are labeled 1.5 grains per tablet. How many tablets should the LPN/LVN plan to administer?
- A. 0.5 tablet
- B. 1 tablet
- C. 1.5 tablets
- D. 2 tablets
Correct answer: B
Rationale: To calculate the number of tablets needed, convert the prescribed dose of Seconal from grams to grains. Since 1 gram is equal to approximately 15.43 grains, 0.1 gram is roughly 1.543 grains. Given that each tablet contains 1.5 grains, administering 1 tablet (which is slightly more than the 1.543 grains needed) provides the correct dose of Seconal. Therefore, the LPN/LVN should plan to administer 1 tablet. Choice A (0.5 tablet) is incorrect as it would provide less than the required dose. Choice C (1.5 tablets) and Choice D (2 tablets) are incorrect as they would exceed the necessary dosage.
3. A healthcare professional is caring for a client who has a prescription for a stool specimen to be sent to the laboratory to be tested for ova and parasites. Which of the following instructions regarding specimen collection should the healthcare professional provide to the assistive personnel?
- A. Collect at least 2 inches of formed stool.
- B. Wear sterile gloves while obtaining the specimen.
- C. Use a culturette for specimen collection.
- D. Record the date and time the stool was collected.
Correct answer: A
Rationale: To ensure accurate testing, a minimum amount of stool is required for specimen collection, typically at least 2 inches of formed stool. This amount provides an adequate sample for testing. Wearing sterile gloves is important for infection control but is not specifically required for stool specimen collection. Using a culturette is not typically necessary for collecting stool specimens. Recording the date and time the stool was collected is essential to ensure timely processing but does not directly impact the collection of the specimen itself.
4. A client with a diagnosis of Methicillin-resistant Staphylococcus aureus (MRSA) has died. Which type of precautions is the appropriate type to use when performing postmortem care?
- A. Airborne precautions
- B. Droplet precautions
- C. Contact precautions
- D. Compromised host precautions
Correct answer: C
Rationale: Contact precautions are necessary when performing postmortem care on a client with MRSA to prevent the spread of infection. Contact precautions involve using barriers like gloves and gowns to limit direct contact with the deceased individual's body fluids and tissues. Airborne precautions are used for pathogens that are transmitted through the air, like tuberculosis. Droplet precautions are for pathogens that are transmitted through respiratory droplets, such as influenza. Compromised host precautions are not a recognized standard precaution type and are not applicable in this scenario.
5. A nurse in a health clinic is caring for a 20-year-old client who tells the nurse that their last physical exam was in high school. Which of the following health screenings should the nurse expect the provider to perform for this client?
- A. Testicular examination
- B. Blood glucose
- C. Fecal occult blood
- D. Prostate-specific antigen
Correct answer: A
Rationale: A testicular examination is appropriate for a 20-year-old male to screen for testicular cancer, which is more common in younger age groups. Testicular cancer is most frequently diagnosed in individuals between the ages of 15 and 40. Blood glucose screening is typically recommended for older individuals or those at risk for diabetes. Fecal occult blood testing is used for colorectal cancer screening, usually starting at age 50. Prostate-specific antigen testing is commonly considered for prostate cancer screening in older males, typically around age 50. Therefore, the most appropriate screening for the 20-year-old client is the testicular examination.
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