Nursing Elites

1. The factor that most determines drug distribution is:

• A. vascular perfusion of the tissue or organ.
• B. salt form.
• C. drug interactions.
• D. steady state.

Correct answer: A

Rationale: The correct answer is 'vascular perfusion of the tissue or organ.' Drug distribution is primarily determined by how well the circulatory system delivers the drug to various tissues and organs. Adequate perfusion ensures proper distribution of the drug throughout the body. While the salt form (choice B), drug interactions (choice C), and steady state (choice D) can influence drug efficacy and metabolism, they are not as crucial as vascular perfusion for the initial distribution of a drug.

2. When administering intravenous electrolyte solution, which of the following precautions should the nurse take?

• A. Infuse hypertonic solutions cautiously.
• B. Mix no more than 60 mEq of potassium per liter of fluid.
• C. Prevent infiltration of calcium, which causes tissue necrosis and sloughing.
• D. Monitor the client's digitalis dosage for potential adjustments due to IV calcium administration.

Correct answer: C

Rationale: When administering intravenous electrolyte solutions, it is crucial to prevent infiltration of calcium to avoid tissue necrosis and sloughing. Hypertonic solutions should be infused cautiously (Choice A) to prevent adverse effects. The correct amount of potassium to be mixed in a liter of fluid is no more than 60 mEq, making Choice B incorrect. While monitoring the client's digitalis dosage for potential adjustments due to IV calcium administration is important, the statement suggesting an increased dosage is incorrect as IV calcium diminishes digitalis's action, making Choice D incorrect.

3. A nurse is instructing a patient on the order of sensations with the application of an ice water bath for a swollen right ankle. Which of the following is the correct order of sensations experienced with an ice water bath?

• A. cold, burning, aching, and numbness
• B. burning, aching, cold, and numbness
• C. aching, cold, burning, and numbness
• D. cold, aching, burning, and numbness

Correct answer: A

Rationale: The correct order of sensations experienced with an ice water bath is cold, burning, aching, and numbness, as stated by the acronym CBAN (cold, burn, ache, numbness). Option A is the correct sequence. Choice B is incorrect as it starts with burning, which typically follows the cold sensation. Choice C is incorrect as aching is usually felt after the burning sensation. Choice D is incorrect as aching usually occurs after the burning sensation.

4. A client has been receiving cyanocobalamin (B12) injections for the past 6 weeks. Which laboratory finding indicates that the medication is having the desired effect?

• A. Neutrophil count of 60%
• B. Basophil count of 0.5%
• C. Monocyte count of 2%
• D. Reticulocyte count of 1%

Correct answer: D

Rationale: Cyanocobalamin is a B12 medication used for pernicious anemia. A reticulocyte count of 1% indicates the desired effect of the medication, as reticulocytes are immature red blood cells that increase in response to B12 therapy, improving anemia. Neutrophils, basophils, and monocytes are white blood cells and are not directly influenced by B12 injections, making them incorrect choices.

5. A nurse is returning phone calls in a pediatric clinic. Which of the following reports most requires the nurse's immediate attention and phone call?

• A. An 8-year-old boy has been vomiting, appears to have slower movements, and has a history of an atrioventricular shunt placement.
• B. A 10-year-old girl feels a dull pain in her abdomen after doing sit-ups in gym class.
• C. A 7-year-old boy has been having a low fever and headache for the past 3 days and has a history of an anterior knee wound.
• D. A 7-year-old girl who had a cast on her right ankle is complaining of itching.

Correct answer: A

Rationale: The correct answer is the 8-year-old boy with vomiting, slower movements, and a history of an atrioventricular shunt placement. This report requires immediate attention because the symptoms could indicate a blocked shunt, which is a serious medical condition needing urgent evaluation and intervention. Slower movements in the context of an atrioventricular shunt history could suggest increased intracranial pressure. The other choices involve less urgent issues: choice B describes post-exercise pain, choice C presents with a low-grade fever and headache that could be due to a mild infection, and choice D reports itching associated with a cast, which is a common issue and less critical compared to a potentially blocked shunt.

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