A nurse is preparing to administer methylphenidate 7.5 mg PO to a school-age child who has ADHD. The amount available is methylphenidate oral solution 5 mg/5 mL. How many mL of the medication 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"]
Calculation:
Desired dose = 7.5 mg
Available concentration = 5 mg / 5 mL
= 1 mg/mL
Calculate the volume to administer:
Volume to administer (mL) = Desired dose (mg) / Available concentration (mg/mL)
= 7.5 mg / 1 mg/mL
= 7.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. "If I decide to get implants in my arm, I will get them replaced every 10 years.": Contraceptive implants, such as etonogestrel (Nexplanon), typically last about 3 to 5 years, not 10 years. Misunderstanding the replacement timeline could leave a client unprotected against pregnancy if not corrected.
B. "If I decide to get pregnant again, tubal reconstruction is a reliable option.": Tubal ligation is considered a permanent form of contraception. Although tubal reversal surgery exists, it is not always successful and is not a reliable or guaranteed method for restoring fertility.
C. "I get the birth control injection, I will need an injection 4 times a year.": The birth control injection, such as depot medroxyprogesterone acetate (Depo-Provera), is administered every 3 months, which totals about 4 injections per year. This statement shows a correct understanding of the injection schedule.
D. "If I get an IUD placed, I will not have menstrual bleeding.": Some types of IUDs, particularly hormonal IUDs, may reduce menstrual bleeding significantly, but complete absence of bleeding does not occur in all clients. Copper IUDs, in contrast, may actually increase menstrual bleeding and cramping.
Correct Answer is B
Explanation
A. Medication: The medication, erythromycin, is clearly stated and appropriately spelled. There is no confusion about what drug the provider intended to prescribe, so there is no immediate need to clarify the medication name itself.
B. Route: The prescription does not specify the route of administration, which is essential for safe medication delivery. Erythromycin can be given orally or intravenously, and using the wrong route could lead to serious complications. Clarifying the route ensures proper technique and absorption.
C. Dosage: The dosage of 500 mg is within the standard therapeutic range for erythromycin, depending on the severity and type of infection. Since the dose appears appropriate, it does not require immediate clarification unless clinical concerns arise.
D. Time: Although "four times per day" is broad, it is generally understood as approximately every six hours. While more exact times can improve consistency, missing the route of administration is a more critical and urgent issue to clarify for client safety.
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