تضم حساب جرعات الأدوية عدد 4608 سؤال تدريب مجاني تناسب هذه الاختبارات: NCLEX-RN, NMC CBT, Gulf exams.
الأسئلة أصلية. أُعدّت بأدوات آلية وراجعتها خطوات مراجعة آلية. وهي ليست مواد اختبار رسمية ولم يراجعها ممرض مرخَّص سؤالًا بسؤال. كيف نُعدّ المحتوى ونراجعه
1. The prescriber orders captopril 50 mg orally. Available: captopril 25 mg tablets. How many tablets will you give? Tablets are scored and may be halved; give the answer to the nearest half tablet.
2 tablets
0.5 tablets
20 tablets
2.5 tablets
أظهر الإجابة
A. 2 tablets
Desired ÷ have = 50 mg ÷ 25 mg = 2 tablets. Inverting the ratio (have ÷ desired) or slipping a decimal place gives the wrong distractors. Practice calculation only: always follow your local protocol and prescriber's order.
2. Infuse 250 mL over 1 hour by gravity using a microdrip (paediatric) giving set with a drop factor of 60 drops/mL. How many drops per minute? Round to the nearest whole drop.
83 drops/min
250 drops/min
2,500 drops/min
252 drops/min
أظهر الإجابة
B. 250 drops/min
Drops/min = (volume × drop factor) ÷ time in minutes = (250 mL × 60 drops/mL) ÷ 60 min = 250 drops/min. Errors: leaving out the drop factor, dividing by hours instead of minutes, or using the wrong set's drop factor. Practice calculation only: always follow your local protocol and prescriber's order.
3. An infusion of 1,500 mL was due to run over 10 hours. At the 4-hour check, 360 mL has gone in. To complete it in the remaining time as prescribed, what rate in mL/h is required? Round to the nearest whole number.
150 mL/h
190 mL/h
114 mL/h
250 mL/h
أظهر الإجابة
B. 190 mL/h
Volume left = 1,500 − 360 = 1,140 mL. Time left = 10 − 4 = 6 h. New rate = 1,140 ÷ 6 = 190 mL/h. Keeping the original rate (150 mL/h) or dividing by the full time are the usual errors. Large catch-up rates need the prescriber's agreement and a fluid-overload check. In practice, check the result against the prescription and local protocol.