A nurse is preparing to administer phenobarbital 30 mg PO to a client. Available is phenobarbital 20 mg/5 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["7.5"]
To calculate the correct dosage, use the formula:
Dose to administer = (Desired dose/Available dose) ×Volume available
Given:
Desired dose = 30 mg
Available ,dose = 20 mg
Volume available = 5 mL
(30mg/20mg) × 5ml = 7.5ml
Final Answer:
7.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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Explanation
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B. Emptying an indwelling urinary catheter bag This task carries a low risk of splashing, so gloves are typically sufficient. If splashing is anticipated, wearing a gown and goggles may be appropriate.
C. Inserting an IV catheter for a client who has peritonitis IV insertion does not pose a high risk of splashes or sprays, so standard precautions (gloves) are usually adequate.
D. Changing the brief of an older adult client who has a Clostridium difficile infection While contact precautions (gown and gloves) are required for C. difficile, a face shield is not necessary unless significant splashing of fecal matter is expected. Hand hygiene with soap and water (not alcohol-based hand sanitizer) is essential.
Correct Answer is A
Explanation
A. "Instruct the client to take small sips of water."
Having the client take small sips of water helps the nurse observe the thyroid gland as it moves up and down with swallowing, making abnormalities more noticeable.
B. "Ask the client to hyperextend their neck during palpation."
The client should slightly extend (not hyperextend) their neck to relax the muscles and allow for better palpation of the thyroid gland.
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The thyroid gland is best observed during swallowing, not by holding the breath.
D. "Assist the client to a supine position prior to the assessment."
Thyroid assessment is performed with the client in a sitting or standing position, not lying down.
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