HESI RN
Pharmacology HESI
1. A client has a prescription to take guaifenesin (Humibid) every 4 hours, as needed. The nurse determines that the client understands the most effective use of this medication if the client states that he or she will:
- A. Watch for irritability as a side effect.
- B. Take the tablet with a full glass of water.
- C. Take an extra dose if the cough is accompanied by fever.
- D. Crush the sustained-release tablet if immediate relief is needed.
Correct answer: B
Rationale: Guaifenesin is an expectorant used to help loosen mucus and make coughs more productive. Taking it with a full glass of water helps decrease the viscosity of secretions, making it easier to expel mucus from the respiratory tract. It is important not to crush sustained-release tablets, as this can alter the intended release of the medication and lead to potential adverse effects.
2. The healthcare provider is preparing to administer phytonadione to a newborn. Which statement made by the parents indicates understanding why the healthcare provider is administering this medication?
- A. Prevent hemorrhagic disorders.
- B. Help an immature liver.
- C. Improve insufficient dietary intake.
- D. Stimulate the immune system.
Correct answer: A
Rationale: The correct answer is A: 'Prevent hemorrhagic disorders.' Phytonadione (vitamin K) is administered to newborns to prevent hemorrhagic disease by promoting blood clotting. Newborns are born with low levels of vitamin K, which is essential for blood clotting, hence the administration to prevent hemorrhagic disorders. Choice B is incorrect because phytonadione is not given to help an immature liver but to supply vitamin K. Choice C is incorrect as phytonadione is not administered to improve dietary intake but to provide essential vitamin K. Choice D is incorrect as phytonadione does not stimulate the immune system but helps with blood clotting.
3. A male client comes into the emergency department with a serum creatinine of 2.2 mg/dL and a blood urea nitrogen (BUN) of 24 mg/dL. What question should the nurse ask first when taking this client’s history?
- A. Have you been taking any aspirin, ibuprofen, or naproxen recently?
- B. Do you have anyone in your family with renal failure?
- C. Have you had a diet that is low in protein recently?
- D. Has a relative had a kidney transplant lately?
Correct answer: A
Rationale: The correct question to ask the client first is about their recent intake of nephrotoxic medications like aspirin, ibuprofen, or naproxen. Elevated serum creatinine and BUN levels indicate possible renal issues, making it crucial to assess potential causes such as medication-induced nephrotoxicity. Inquiring about family history of renal failure or recent kidney transplants would not provide immediate insights into the client's current renal condition. While a diet low in protein could influence BUN levels, it is important to address medication history first due to the acute presentation in the emergency department.
4. A nurse in the outpatient clinic is caring for a patient who has a magnesium level of 1.3 mg/dL. Which assessment would be most important for the nurse to make?
- A. Daily alcohol intake
- B. Intake of dietary protein
- C. Multivitamin/mineral use
- D. Use of over-the-counter (OTC) laxatives
Correct answer: A
Rationale: The correct answer is A: Daily alcohol intake. Hypomagnesemia is often associated with alcoholism, making it crucial for the nurse to assess the patient's alcohol consumption. Protein intake is not directly related to magnesium levels. The use of over-the-counter laxatives and multivitamin/mineral supplements would typically increase magnesium levels, which are not the focus when dealing with hypomagnesemia.
5. Which of the following tests is positive in pelvic inflammatory disease?
- A. Cervical excitation test
- B. Chadwick sign
- C. Jacquiners sign
- D. Palmers sign
Correct answer: A
Rationale: The correct answer is A: Cervical excitation test. The cervical excitation test is positive in pelvic inflammatory disease. This test involves pain or tenderness upon movement of the cervix, indicating inflammation of the pelvic organs. Chadwick sign (choice B) refers to a bluish discoloration of the cervix, vagina, and labia due to increased vascularity and is not a test for PID. Jacquiners sign (choice C) and Palmers sign (choice D) are not recognized clinical signs or tests for PID, making them incorrect choices.