The nurse is providing medications to an adult patient with a history of advanced kidney disease. Which laboratory finding indicates that the dosages of medications may need to be decreased?
Hemoglobin 12 mg/dL
Glucose 100 mg/dL
Creatinine 8 mg/dL
Potassium 4.0 mEq/L
The Correct Answer is C
A. Hemoglobin 12 mg/dL: Hemoglobin levels reflect the oxygen-carrying capacity of the blood and are not directly related to kidney function or medication dosage adjustments. This value is within the normal range and does not suggest a need for medication dosage changes.
B. Glucose 100 mg/dL: Blood glucose levels are not directly related to kidney function and do not indicate the need to adjust medication dosages. This value is within normal limits.
C. Creatinine 8 mg/dL: Creatinine levels are a key indicator of kidney function. A creatinine level of 8 mg/dL is significantly elevated, suggesting severe renal impairment. Medications that are excreted by the kidneys may need to be dosed lower or avoided altogether to prevent toxicity.
D. Potassium 4.0 mEq/L: This is a normal potassium level and does not indicate the need for medication dosage adjustments. While potassium levels are important in kidney disease, this specific value does not suggest a dosage change is necessary.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","E"]
Explanation
A. Molecular weight: Drugs with lower molecular weight tend to have higher bioavailability because they can more easily pass through biological membranes.
B. Fat or liquid solubility: Drugs that are fat-soluble can cross cell membranes more easily, affecting their bioavailability. Water-soluble drugs may require transport mechanisms, which can limit absorption.
C. Depth of breathing: The depth of breathing primarily affects the absorption of inhaled drugs, not the general bioavailability of orally or intravenously administered medications.
D. Development of a fever: While fever can affect drug metabolism, it doesn’t directly influence the bioavailability of a drug.
E. Presence of food: Food in the stomach can either enhance or inhibit drug absorption, depending on the drug’s characteristics. This directly impacts bioavailability.
Correct Answer is A
Explanation
A. Non-scheduled medication: OTC cough suppressants are typically classified as non-scheduled medications because they are not considered controlled substances and do not require a prescription for purchase.
B. Schedule III medication: Schedule III medications are controlled substances with a moderate potential for abuse and dependence. OTC cough suppressants do not fall under this category.
C. Schedule I medication: Schedule I medications are drugs with no accepted medical use and a high potential for abuse (e.g., heroin). OTC cough suppressants are not classified in this schedule.
D. Schedule V medication: Schedule V medications are controlled substances with a lower potential for abuse. While some cough medications containing codeine may be Schedule V, common OTC cough suppressants do not fall under this category unless they contain specific controlled substances.
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