The practical nurse (PN) applies a preparation with keratolytic properties to both legs of a client with psoriasis. Which finding indicates that the desired effect has been achieved?
Scaly areas of the skin appear softer with less peeling
No purulent drainage present from lesions on the legs
Affected areas are free of localized redness and swelling
Full range of motion without pain of lower extremity joints
The Correct Answer is A
Choice A reason: Keratolytic agents, like salicylic acid, break down keratin in psoriatic plaques, softening scaly skin and reducing peeling. This promotes shedding of thickened, dead skin cells, improving skin texture. Softer, less scaly skin directly indicates the medication’s effect on hyperkeratotic lesions, confirming therapeutic success.
Choice B reason: Absence of purulent drainage indicates no infection but is not the primary goal of keratolytics. These agents target scale reduction, not infection. Psoriasis lesions are typically not purulent, so this finding is unrelated to the medication’s intended effect on skin texture.
Choice C reason: Reduced redness and swelling suggest decreased inflammation, which is not the primary action of keratolytics. Anti-inflammatory agents, like corticosteroids, target these symptoms, while keratolytics focus on scale removal. This finding is irrelevant to the medication’s specific role in psoriasis management.
Choice D reason: Full range of motion without pain relates to joint function, possibly in psoriatic arthritis, but is unrelated to keratolytics, which treat skin lesions. Keratolytics do not affect joint inflammation or mobility, making this choice incorrect for assessing the medication’s skin-specific effects.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Explaining the medication’s purpose is important but does not address the inappropriate bedtime dosing. Diuretics increase urination, causing nocturia and sleep disruption. Administering as scheduled without review risks client discomfort, making this choice less appropriate than verifying timing.
Choice B reason: Reviewing the prescription with the charge nurse is critical, as bedtime diuretic administration causes nocturia, disrupting sleep. Diuretics, like hydrochlorothiazide, increase urine production, and morning dosing aligns with daily activity, minimizing nighttime disturbance, ensuring safe and effective administration timing.
Choice C reason: Withholding the medication until the next day delays treatment, risking conditions like edema or hypertension. Consulting the charge nurse allows timely clarification of dosing time, ensuring therapeutic benefits without sleep disruption, making this choice overly cautious and unnecessary.
Choice D reason: Administering the diuretic early without confirmation violates protocol, as the prescription specifies bedtime. Unilateral changes risk errors, and morning dosing requires provider approval. Reviewing with the charge nurse is safer, ensuring alignment with clinical intent while addressing sleep concerns.
Correct Answer is A
Explanation
Choice A reason: Montelukast is a leukotriene receptor antagonist that inhibits leukotrienes, mediators of inflammation in allergic responses. By blocking these, it reduces airway inflammation, bronchoconstriction, and mucus production, preventing asthma or allergic rhinitis symptoms. This prophylactic action targets the immune response to allergens, stabilizing respiratory function before symptoms escalate.
Choice B reason: Montelukast does not increase mucus production. Instead, it reduces mucus by inhibiting leukotriene-driven inflammation in the airways. Increased mucus is a symptom of uncontrolled asthma or allergies, which montelukast aims to prevent. This choice is incorrect as it contradicts the drug’s mechanism of reducing inflammatory responses in the lungs.
Choice C reason: Montelukast does not contract respiratory smooth muscles. It prevents bronchoconstriction by blocking leukotrienes, which cause smooth muscle contraction in asthma. By inhibiting this pathway, it promotes airway relaxation, not contraction. This choice is incorrect, as it misrepresents the drug’s role in maintaining open airways.
Choice D reason: Montelukast does not repair damaged lung tissue. Its primary role is to prevent inflammation and bronchoconstriction caused by allergens. Lung tissue repair involves other physiological processes, not influenced by montelukast. This choice is incorrect, as it falsely attributes tissue regeneration to a drug focused on immune modulation.
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