Which class of medications are given to liquefy secretions and make them easier to expel?

Choice A reason: Bradycardia occurs in hypothyroidism; Graves’ disease, hyperthyroidism, speeds metabolism, causing tachycardia, not slowed heart rate, during exacerbation.

Choice B reason: Heat intolerance in Graves’ disease results from excess thyroid hormone accelerating metabolism, raising body temperature, a hallmark of hyperthyroidism flares.

Choice C reason: Weight gain aligns with hypothyroidism’s slowed metabolism; Graves’ causes weight loss from increased calorie burning, opposite to this finding.

Choice D reason: Lethargy reflects hypothyroidism’s energy drop; Graves’ exacerbation increases metabolism, leading to restlessness or fatigue from overactivity, not lethargy.

Choice A reason: Fluid restriction doesn’t address hyperkalemia (6.4 mEq/L); it may concentrate potassium further, worsening the condition, as it’s unrelated to potassium excretion or shifting in this scenario.

Choice B reason: Neomycin, an antibiotic, reduces gut bacteria but isn’t used for hyperkalemia. It has no direct effect on potassium levels, making it irrelevant for this lab finding.

Choice C reason: Kayexalate binds potassium in the gut, facilitating its fecal excretion, effectively lowering serum levels (6.4 mEq/L) in hyperkalemia, aligning with urgent correction needs here.

Choice D reason: Sodium chloride and furosemide dilute and excrete potassium via urine, but Kayexalate is preferred for rapid gut-based removal when potassium is critically high (6.4 mEq/L).