The doctor writes an order for a liquid oral medication. The order says to administer 15 mg by mouth every 4 hours as needed for sore throat. Pharmacy dispenses you with 30 mg/3ml. How many ml will you administer per dose?
0.5 mL/dose
3 mL/dose
1.5 mL/dose
6 mL/dose
The Correct Answer is C
A. This option is incorrect, check rationale for option C.
B. This option is incorrect, check rationale for option C.
C. Step 1: Use the formula
Amount to administer (mL) = (Desired dose ÷ Dose available) × Volume available
Step 2: Insert known values
Desired dose = 15 mg
Dose available = 30 mg
Volume available = 3 mL
Amount to administer = (15 ÷ 30) × 3
Amount to administer = 0.5 × 3
Amount to administer = 1.5 mL
Step 3: Match the calculated volume to the options
1.5 mL → Option C
Final Answer: C. 1.5 mL/dose
D. This option is incorrect, check rationale for option C.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Mediastinal chest tubes are specific for draining fluid or blood from the mediastinum after cardiac surgery, but the description in the question refers to the suction mechanism of the drainage system, not its anatomical placement.
B. A dry suction systemuses a mechanical suction monitor (bellow or dial)rather than a water column to regulate suction. It allows precise suction control, eliminates bubbling noises, and does not require water replenishment, preventing evaporation issues. This matches the description provided.
C. Wet suction systems use a water column to control suction. Bubbling in the water chamber regulates suction, and water can evaporate over time, which is different from the dry suction system described.
D. Dry-wet systems combine features of both dry and water-based suction systems, but the description specifies no water column is used to control suction, which aligns solely with the dry suction system.
Correct Answer is A
Explanation
A. The client’s swollen, red, painful foot, hypotension (90/60), and vomitingare classic signs of a venomous snakebite, which can cause systemic toxicity, hypotension, coagulopathy, and tissue necrosis. Snakebite is a life-threatening emergencythat requires immediate assessment, stabilization, and possible administration of antivenom, making it the priority condition.
B. Heat exhaustionpresents with weakness, nausea, headache, and mild hypotension, but the localized swelling and redness in the leg are not consistent with heat exhaustion.
C. Altitude sicknesstypically develops at higher elevations and manifests as headache, nausea, dizziness, and fatigue, not a localized extremity injury with hypotension.
D. Brown recluse spider bitescan cause localized pain, redness, and necrosis, but systemic symptoms such as hypotension and vomitingare less common, making snakebite the higher-priority assessment.
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