In the majority of cases, which organ is responsible for the excretion or elimination of a medication from the body?
Kidney
Liver
Intestine
Skin
The Correct Answer is A
A. Kidney: The kidneys are the primary organs responsible for drug excretion through processes such as glomerular filtration, tubular secretion, and reabsorption. Most water-soluble drugs and metabolites are eliminated via urine, making renal function a key factor in determining drug clearance rates.
B. Liver: The liver is primarily responsible for metabolism, converting drugs into more water-soluble compounds that can later be excreted. While it plays a vital role in drug processing, it is not the main organ for elimination of the final metabolites from the body.
C. Intestine: Some drugs and metabolites are excreted into the bile and may enter the intestines, where they can either be reabsorbed or eliminated in feces. However, this route accounts for a smaller proportion of total drug excretion compared to renal elimination.
D. Skin: The skin plays a minimal role in drug elimination, primarily through sweat, which contributes negligibly to total drug clearance. It is not a significant excretory route for most medications.
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Related Questions
Correct Answer is A
Explanation
A. Stimulates the immune system: Echinacea is most commonly used to enhance immune function and is often taken to reduce the severity or duration of colds and other respiratory infections. Its role in supporting immune activity makes this the most likely reason the patient is taking it.
B. Reduces acid reflux into esophagus: Acid reflux management is typically achieved with medications like proton pump inhibitors or lifestyle changes. Echinacea does not have therapeutic properties shown to reduce gastric acid or prevent reflux into the esophagus.
C. Improves memory loss in dementia: Herbs such as ginkgo biloba are sometimes used for cognitive support, but echinacea has not been shown to improve memory or slow the progression of dementia-related symptoms.
D. Improves oxygen exchange in the lungs: Lung oxygen exchange is enhanced by pulmonary medications such as bronchodilators or corticosteroids. Echinacea does not have properties that improve alveolar gas exchange.
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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