Which action by the nurse promotes optimal absorption of a topical ointment?
Applying a large amount over a wide area
Massaging the medication vigorously into the skin
Applying to moist, inflamed skin
Cleaning and drying the skin before application
The Correct Answer is D
To ensure safe and effective medication delivery, nurses must adhere to evidence-based practices when applying topical ointments. These practices are essential for promoting optimal drug absorption, minimizing adverse effects, and ensuring therapeutic outcomes. One of the most critical steps in this process is proper skin preparation before application.
Rationales:
4. Cleaning and drying the skin before application:
Cleaning removes debris, oil, or contaminants, and drying prevents dilution or interference with absorption. This step ensures that the ointment contacts the skin effectively for localized or systemic effect.
1. Applying a large amount over a wide area:
Using excessive medication may not improve absorption and could increase the risk of systemic side effects. The goal is to apply only the prescribed amount to the affected area.
2. Massaging the medication vigorously into the skin:
Vigorous massage may irritate the skin or cause unintended systemic absorption. Gentle application is preferred unless otherwise specified by the medication guidelines.
3. Applying to moist, inflamed skin:
While inflamed skin may absorb more medication, it can also increase the risk of irritation or toxicity. Medication should generally be applied to intact, clean, and dry skin unless directed otherwise.
Take-home points:
- Clean, dry skin enhances absorption and reduces the risk of contamination or irritation.
- Avoid overuse or excessive application of ointments to prevent side effects.
- Follow product-specific instructions for massage or application pressure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Transdermal patches are designed to deliver medication slowly and consistently through the skin into the bloodstream, making them ideal for chronic conditions requiring steady plasma drug levels. To ensure both efficacy and safety, nurses must follow precise application guidelines that include choosing appropriate skin sites, monitoring for adverse effects, and maintaining accurate documentation. Recording the date, time, and location of the patch helps prevent errors such as overlapping applications, missed doses, or skin irritation from repeated site use.
Rationale for correct answer:
3. Document the date, time, and site of application:
Proper documentation helps ensure that the patch is changed at the correct time and applied to a new site, reducing the risk of medication buildup and skin breakdown. It also promotes accountability and continuity of care.
1. Cut the patch in half for dosage adjustment:
Cutting a transdermal patch compromises its integrity and may lead to uncontrolled medication release, increasing the risk of overdose or therapeutic failure. Most patches are not designed to be divided.
2. Apply over the same site as the previous patch:
Reusing the same site repeatedly can cause skin irritation, decreased absorption, and local tissue reactions. Rotating sites allows the skin to recover and ensures proper absorption.
4. Apply to broken or irritated skin for faster absorption:
Broken or inflamed skin can absorb medications unpredictably, potentially resulting in toxicity or adverse reactions. Patches should only be applied to intact, clean, and dry skin.
Take-home points:
- Always document date, time, and site when applying a transdermal patch to ensure consistent care.
- Never cut or divide transdermal patches unless specified by the manufacturer.
- Apply patches to intact, hairless skin and rotate sites to prevent irritation and maintain drug effectiveness.
Correct Answer is C
Explanation
Patch testing is a diagnostic procedure used prior to the administration of certain topical medications or substances to evaluate for delayed hypersensitivity reactions. It helps identify substances that may cause contact dermatitis or other localized allergic responses.
Rationales:
3. To detect localized allergic responses:
Patch testing is designed to detect delayed-type (Type IV) hypersensitivity reactions. The test helps identify whether a patient has a localized allergic reaction, such as erythema, edema, or vesicle formation, to specific allergens.
Rationale for incorrect answers:
1. To assess the effectiveness of a transdermal drug:
Patch testing is not used to assess drug efficacy. It does not involve therapeutic drug dosing but rather small quantities of substances to detect hypersensitivity reactions on the skin.
2. To evaluate systemic absorption of topical agents:
Patch tests are limited to observing local skin responses and do not provide information about systemic absorption or bioavailability of topical drugs.
4. To treat minor dermatologic conditions:
Patch testing is a diagnostic, not a therapeutic, procedure. It does not treat dermatologic conditions but instead helps determine which substances to avoid.
Take-home points:
- The primary role of patch testing is to identify localized allergic skin reactions to substances like medications or environmental allergens.
- It is diagnostic and used before prescribing or continuing specific topical treatments.
- It helps prevent adverse skin reactions by detecting sensitivities early.
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