The nurse should monitor for which potential clinical manifestation after administering furosemide (Lasix)?

Choice A reason: Increasing aspirin dosage without medical guidance risks toxicity, including gastrointestinal bleeding and ulceration, as aspirin inhibits COX enzymes, reducing prostaglandin production. Prostaglandins mediate pain and inflammation, but excessive inhibition can damage the stomach lining. This approach is unsafe and not recommended for managing menstrual cramps effectively, as it may exacerbate adverse effects without ensuring better pain relief.

Choice B reason: First-generation NSAIDs, like ibuprofen, are more effective for menstrual cramps due to their stronger inhibition of COX-1 and COX-2 enzymes, which reduce prostaglandin synthesis responsible for uterine contractions and pain. Unlike aspirin, ibuprofen offers better pain relief with a more favorable dosing profile, making it a suitable alternative for dysmenorrhea management in most patients.

Choice C reason: Acetaminophen lacks significant anti-inflammatory effects, as it primarily inhibits COX enzymes in the central nervous system, not peripherally. It reduces pain and fever but does not effectively target prostaglandin-mediated inflammation in menstrual cramps. Therefore, it is less effective than NSAIDs like ibuprofen for dysmenorrhea, making it an inappropriate substitute in this context.

Choice D reason: Avoiding COX inhibitors due to Reye’s syndrome risk is unwarranted here, as Reye’s syndrome is primarily associated with aspirin use in children with viral infections. Menstrual cramps are unrelated to this condition, and COX inhibitors like NSAIDs are standard treatment. This choice is overly restrictive and not clinically justified for managing dysmenorrhea.

Choice A reason: Metabolic acidosis involves low pH and HCO3-; here, pH is normal, and HCO3- is high. Elevated PaCO2 compensates for high HCO3-, so this is incorrect for the ABG values.

Choice B reason: Normal pH (7.39), high HCO3- (29), and high PaCO2 (47) indicate metabolic alkalosis fully compensated by respiratory retention of CO2. This matches the values, making it correct.

Choice C reason: Respiratory alkalosis has low PaCO2 and normal or low HCO3-. Here, PaCO2 and HCO3- are high, ruling this out, so it’s incorrect for the given ABG profile.

Choice D reason: Respiratory acidosis has high PaCO2 and low pH. Normal pH and high HCO3- suggest metabolic alkalosis, not respiratory acidosis, making this incorrect for the values.