HESI RN
Pharmacology HESI
1. Isotretinoin is prescribed for a client with severe acne. Before the administration of this medication, the nurse anticipates that which laboratory test will be prescribed?
- A. Platelet count
- B. Triglyceride level
- C. Complete blood count
- D. White blood cell count
Correct answer: B
Rationale: Before administering Isotretinoin, it is important to check the client's triglyceride levels. Isotretinoin is known to elevate triglyceride levels, hence monitoring them before and periodically during treatment is essential to prevent potential adverse effects.
2. The client has a new prescription for metoclopramide (Reglan). On review of the chart, the nurse identifies that this medication can be safely administered with which condition?
- A. Intestinal obstruction
- B. Peptic ulcer with melena
- C. Diverticulitis with perforation
- D. Vomiting following cancer chemotherapy
Correct answer: D
Rationale: Metoclopramide, also known as Reglan, is commonly used to manage vomiting following cancer chemotherapy. It acts as a gastrointestinal stimulant and antiemetic, aiding in relieving nausea and vomiting associated with chemotherapy. Metoclopramide should be avoided in conditions like intestinal obstruction, peptic ulcer with melena, and diverticulitis with perforation due to its prokinetic properties that can worsen these conditions. Therefore, the correct answer is D: Vomiting following cancer chemotherapy.
3. Tamoxifen is prescribed for the client with metastatic breast carcinoma. The nurse understands that the primary action of this medication is to:
- A. Increase DNA and RNA synthesis.
- B. Promote the biosynthesis of nucleic acids.
- C. Increase estrogen concentration and estrogen response.
- D. Compete with estradiol for binding to estrogen in tissues containing high concentrations of receptors.
Correct answer: D
Rationale: The primary action of tamoxifen, an antineoplastic medication used in metastatic breast carcinoma, is to compete with estradiol for binding to estrogen receptors in tissues with high receptor concentrations. By doing so, tamoxifen reduces DNA synthesis and estrogen response, leading to its therapeutic effect in inhibiting the growth of estrogen-sensitive breast cancer cells.
4. The healthcare provider is applying a topical corticosteroid to a client with eczema. The healthcare provider should monitor for the potential of increased systemic absorption of the medication if the medication were being applied to which of the following body areas?
- A. Back
- B. Axilla
- C. Soles of the feet
- D. Palms of the hands
Correct answer: B
Rationale: The axilla has thinner skin, making it more permeable to topical medications. Areas with thinner skin, like the axilla, allow for higher systemic absorption of topical corticosteroids.
5. A client has been taking isoniazid (INH) for 2 months. The client complains to a nurse about numbness, paresthesias, and tingling in the extremities. The nurse interprets that the client is experiencing:
- A. Hypercalcemia
- B. Peripheral neuritis
- C. Small blood vessel spasm
- D. Impaired peripheral circulation
Correct answer: B
Rationale: The client's symptoms of numbness, paresthesias, and tingling in the extremities indicate peripheral neuritis, a common side effect of isoniazid (INH). This condition can be managed by supplementing with pyridoxine (vitamin B6) to minimize the symptoms.
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