HESI RN
HESI Pharmacology Practice Exam
1. A client is receiving bethanechol chloride (Urecholine). The nurse monitors the client for adverse effects of the medication and should observe for which of the following?
- A. Bradycardia
- B. Constipation
- C. Hypertension
- D. Dry mouth
Correct answer: A
Rationale: Corrected Rationale: Bethanechol chloride (Urecholine) stimulates muscarinic receptors, which can lead to bradycardia as an adverse effect. Monitoring for bradycardia is crucial when administering this medication. Constipation, hypertension, and dry mouth are not typically associated with the effects of bethanechol chloride. Bradycardia is the correct adverse effect to monitor for, making option A the correct answer. Constipation, hypertension, and dry mouth are not commonly seen with bethanechol chloride and are therefore incorrect choices.
2. The nurse is instructing a client with high cholesterol about diet and life style modification. What comment from the client indicates that the teaching has been effective?
- A. If I exercise at least two times weekly for one hour, I will lower my cholesterol.
- B. I need to avoid eating proteins, including red meat.
- C. I will limit my intake of beef to 4 ounces per week.
- D. My blood level of low density lipoproteins needs to increase.
Correct answer: C
Rationale: Limiting saturated fat from animal food sources to no more than 4 ounces per week is an important diet modification for lowering cholesterol. To be effective in reducing cholesterol, the client should exercise 30 minutes per day, or at least 4 to 6 times per week. Red meat and all proteins do not need to be eliminated to lower cholesterol, but should be restricted to lean cuts of red meat and smaller portions. The low density lipoproteins need to decrease rather than increase.
3. The mother of a 4-month-old asks the nurse for advice in preventing diaper rash. What suggestion should the nurse provide?
- A. At diaper change generously powder the baby's diaper area with talcum powder to promote dryness.
- B. Wash the diaper area every 2 hours with soap and water to help prevent skin breakdown.
- C. Use a barrier cream, such as zinc oxide, which does not have to be completely removed with each diaper change.
- D. Place a cloth diaper inside the disposable diaper for overnight periods when increased wearing time is likely.
Correct answer: C
Rationale: Using a barrier cream like zinc oxide protects the skin and helps prevent diaper rash.
4. During the care of a client with a salmonella infection, what is the primary nursing intervention to limit transmission?
- A. Wash hands thoroughly before and after client contact
- B. Wear gloves when in contact with body secretions
- C. Double glove when in contact with feces or vomitus
- D. Wear gloves when disposing of contaminated linens
Correct answer: A
Rationale: The correct answer is to wash hands thoroughly before and after client contact when caring for a client with a salmonella infection. This approach is crucial in preventing the transmission of the infection. While wearing gloves when in contact with body secretions (Choice B), double gloving when in contact with feces or vomitus (Choice C), and wearing gloves when disposing of contaminated linens (Choice D) are important infection control measures, the primary intervention to limit the spread of salmonella is proper hand hygiene.
5. What is the composition of the cellular membrane?
- A. A bilayer of phospholipid molecules
- B. A single layer of phospholipid molecules
- C. Proteins that act as transport highways
- D. Carbohydrates
Correct answer: A
Rationale: The cellular membrane is primarily composed of a phospholipid bilayer, which consists of two layers of phospholipid molecules. These molecules have a hydrophilic (water-attracting) head and hydrophobic (water-repelling) tail, creating a barrier that separates the internal cellular environment from the external surroundings. While proteins are embedded within this bilayer and act as transport channels, receptors, and structural support, carbohydrates are found on the outer surface of the membrane for cell recognition and signaling purposes. Therefore, the correct answer is a bilayer of phospholipid molecules.