NCLEX-PN Quizlet 2023 - Nurselytic

Correct Answer: C

Rationale: When a client is taking a drug (Drug
A) metabolized by the cytochrome P-450 system and is then started on another drug (Drug
B) that induces this system, the metabolism of Drug A is increased. This results in decreased therapeutic effects of Drug A as it is broken down more rapidly. Monitoring is required to address potential reduced efficacy. The therapeutic effect of Drug A is diminished, not enhanced. Inducing the cytochrome P-450 system does not directly increase the adverse effects of Drug B. Although Drug B is an inducer, its therapeutic effects are not decreased as it is not metabolized faster.

Correct Answer: C

Rationale: Pernicious anemia is least likely to be associated with an increased potential for bleeding compared to the other conditions listed. Pernicious anemia is a condition resulting from vitamin B12 deficiency due to the absence of intrinsic factor, necessary for B12 absorption. While pernicious anemia can lead to neurological issues, it is not directly linked to an increased risk of bleeding. Metastatic liver cancer can cause liver dysfunction leading to coagulopathy, gram-negative septicemia can result in disseminated intravascular coagulation (DI
C), and iron-deficiency anemia can lead to microcytic hypochromic red blood cells, increasing the risk of bleeding.
Therefore, pernicious anemia is the least likely to be associated with an increased potential for bleeding out of the options provided.

Correct Answer: B

Rationale: In respiratory acidosis, the body retains CO2, leading to increased hydrogen ion concentration and a drop in blood pH. As pH decreases, serum potassium levels increase due to the movement of potassium out of cells to compensate for the acidosis. Elevated serum potassium levels are expected in respiratory acidosis.
Choice A ('normal') is incorrect because potassium levels are expected to be elevated in respiratory acidosis.
Choice C ('low') is incorrect as potassium levels rise in this condition.
Choice D ('unrelated to the pH') is incorrect as serum potassium levels are directly impacted by changes in pH in respiratory acidosis.

Correct Answer: D

Rationale: The patient's presentation of a warm, red, swollen extremity with a low fever is indicative of cellulitis, which is inflammation of cellular tissue. Cellulitis is commonly associated with these symptoms due to a bacterial infection in the skin and underlying tissues. Herpes (
Choice
A) is a viral infection that typically presents with grouped vesicles, not the warm, red, swollen presentation seen in cellulitis. Scleroderma (
Choice
B) is a chronic autoimmune condition affecting the skin and connective tissue, presenting differently from the acute symptoms of cellulitis. Dermatitis (
Choice
C) refers to skin inflammation, which does not typically present with the described symptoms of warmth, redness, swelling, and low fever observed in cellulitis.

Correct Answer: D

Rationale: Elderly persons with pernicious anemia, a condition characterized by vitamin B12 deficiency due to lack of intrinsic factor, should be informed about the potential side effects of B12 injections. Diarrhea is a known transient side effect of B12 injections, along with pain and burning at the injection site, and peripheral vascular thrombosis. Increasing dietary intake of B12-rich foods would not be sufficient due to the malabsorption issue in pernicious anemia. Follow-up is essential in managing pernicious anemia, so instructing patients they do not need to return for follow-up is incorrect. While oral B12 may be a suitable option for some cases, it is not the preferred choice for pernicious anemia where malabsorption is the primary issue.