The nurse will instruct patients about a possible systemic effect that may occur with the use of inhaled albuterol. Which systemic effect may occur?

Choice A reason: Oral decongestants like pseudoephedrine are not inherently more potent than nasal sprays like oxymetazoline. Both stimulate alpha-adrenergic receptors to constrict nasal blood vessels, but nasal sprays often provide more rapid, localized relief. Potency depends on dose and delivery, not route, making this incorrect.

Choice B reason: Oral decongestants do not have an immediate onset. They require absorption through the gastrointestinal tract, with effects starting in 30-60 minutes. Nasal sprays act within minutes due to direct mucosal application, making them faster for acute sinus symptom relief, unlike slower-acting oral forms.

Choice C reason: Oral decongestants typically have a longer duration of action (4-6 hours for pseudoephedrine) compared to nasal sprays (often shorter unless long-acting). Shorter duration is not a benefit, as prolonged relief is preferred for sinus congestion, making this an incorrect advantage of oral administration.

Choice D reason: Oral decongestants avoid rebound congestion, a common issue with nasal sprays like oxymetazoline, which can cause rhinitis medicamentosa with prolonged use. Oral agents like pseudoephedrine act systemically, reducing nasal congestion without local dependence, making them safer for extended use without worsening symptoms upon discontinuation.

Choice A reason: Carbapenems, like imipenem, are broad-spectrum antibiotics reserved for severe, multidrug-resistant infections. They are not first-line for uncomplicated urinary tract infections due to their potency and risk of promoting resistance. Sulfonamides are more commonly used for UTIs due to their efficacy and specificity.

Choice B reason: Sulfonamides, like trimethoprim-sulfamethoxazole, are especially useful for urinary tract infections. They inhibit bacterial folate synthesis, targeting pathogens like Escherichia coli, a common UTI cause. Their concentration in urine enhances efficacy, making them a first-line choice for uncomplicated UTIs in susceptible organisms.

Choice C reason: Tetracyclines, like doxycycline, are not typically used for urinary tract infections. They are effective for other infections, like chlamydia, but their spectrum and renal clearance make them less ideal for common UTI pathogens like E. coli compared to sulfonamides or nitrofurantoin.

Choice D reason: Macrolides, like erythromycin, are used for respiratory or soft tissue infections, not primarily for urinary tract infections. They have limited activity against common UTI pathogens like E. coli and do not concentrate effectively in urine, making sulfonamides a more appropriate choice.