In order to avoid a medication being subject to first pass metabolism, which route(s) of administration should be used? (Select all that apply)
Enteral
Transdermal
Intravaginal
Subcutaneous
Intranasal
Correct Answer : B,C,D,E
A. Enteral: Medications given by the enteral route (oral, gastric, or intestinal) pass through the gastrointestinal tract and are transported to the liver via the portal circulation, where they undergo first-pass metabolism. This reduces the amount of active drug that reaches systemic circulation.
B. Transdermal: Drugs absorbed through the skin enter directly into systemic circulation, bypassing the gastrointestinal tract and the liver initially. This allows for a steady release of medication without significant first-pass metabolism, making it a useful route for drugs requiring sustained blood levels.
C. Intravaginal: Vaginal administration provides local and systemic effects by allowing drug absorption through the mucosa directly into the bloodstream. Since it avoids the hepatic portal system, this route reduces first-pass metabolism and enhances systemic bioavailability.
D. Subcutaneous: Medications injected into subcutaneous tissue are absorbed into systemic circulation through capillaries and lymphatic vessels. This route bypasses the gastrointestinal system and liver initially, minimizing first-pass metabolism and ensuring more predictable drug levels.
E. Intranasal: Drugs administered intranasally are absorbed through the nasal mucosa directly into systemic circulation. This route avoids the liver’s first-pass effect, providing rapid onset of action and making it suitable for medications requiring quick therapeutic effects.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Hyperactivity in young children: Ginger root has no therapeutic role in managing hyperactivity or attention-related disorders. Interventions for hyperactivity typically involve behavioral therapy or stimulant medications, not herbal remedies like ginger.
B. Insomnia from shiftwork: Ginger does not have sedative or sleep-promoting properties. Sleep difficulties from shift work are better addressed through sleep hygiene, melatonin, or light therapy rather than using ginger supplements.
C. Depression following a tragedy: Ginger has not been shown to influence mood regulation or serotonin levels. Treatment for depression typically involves counseling, antidepressants, or cognitive-behavioral therapy.
D. Nausea during a cruise vacation: Ginger root is widely used as a natural antiemetic to relieve nausea and vomiting, including motion sickness. Its active compounds, such as gingerols and shogaols, help reduce gastrointestinal irritation and stabilize stomach motility.
Correct Answer is A
Explanation
A. Diphenhydramine: This is the generic name for an antihistamine commonly marketed under brand names such as Benadryl. Generic names identify the active chemical substance without reference to a specific manufacturer.
B. 2-[4-(2-methylpropyl) phenyl] propanoic acid: This represents the chemical name of ibuprofen, which describes the molecular structure of the compound rather than its generic or brand identity. Chemical names are rarely used in clinical settings due to their complexity.
C. Tylenol: Tylenol is a brand name for the generic drug acetaminophen (paracetamol). Brand names are created by manufacturers for marketing purposes and differ from the official generic designation.
D. Advil: Advil is a brand name for the generic drug ibuprofen. Like Tylenol, it identifies a specific manufacturer’s product rather than the standardized drug name used universally in healthcare documentation.
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