PTCB Math Exam Questions and Answers Latest Updated Graded A++
42 vistas 0 veces vendidas
Grado
PTCB Math
Institución
PTCB Math
PTCB Math Exam Questions and Answers Latest Updated Graded A++. If the concentration of a stock of medication vial is 0.25g/ml, what volume of stock
solution is required to deliver a dose of 800mg?
a) 0.32ml
b) 3.2 ml
c) 32 ml
d) 320 ml
1 g = ? mg - Answer 1 g = 1000 mg
1. Do a proportion t...
Ketoconazole 2% in polythylene glycol is commonly used for ringworm treatment. To compound a pint of this solution, the pharmacy technician must weigh what amount of Ketoconazole? a) 4.8 g b) 480 g c) 9.6 g d) 960 g 1 pint = ? oz 1 oz = ? g - Answer 1 pint = 16 oz 1 oz = 30 g 1. Do a proportion to calculate how many grams in a pint. 1 oz/30 g = 16 oz/x g x = 480 g 2. Convert 2% to a decimal and calculate 2% of 480g = x g .02 x 480g = 9.6 g Answer: c) 9.6g If the concentration of a stock of medication vial is 0.25g/ml, what volume of stock solution is required to deliver a dose of 800mg? a) 0.32ml b) 3.2 ml c) 32 ml d) 320 ml 1 g = ? mg - Answer 1 g = 1000 mg 1. Do a proportion to calculate how many mg is equivalent to .25g/ml. 1 g/1000 mg = .25g / x mg x = 250 mg 2. Do a proportion to calculate how many ml is equivalent to 800 mg. 250mg/1 ml = 800 mg/x ml x = 3.2 ml Answer: b) 3.2 ml A 40 ml stock vial of Ranitidine contains a 25mg/ml solution. How many milliliters must be withdrawn for a patient who requires 50 mg Ranitidine IV? - Answer 40 ml - info not necessary Do a proportion to calculate how many ml is equivalent to 50mg 25mg/1ml = 50 mg/x ml x = 2 ml PTCB Math Exam Practice Questions and Answers Latest Updated 2023/2024 100% Verified Answer: b) 2 ml The maximum amount per transaction of pseudoephedrine is 3.6 g. What is the maximal number of 30 mg tablets allowable in a single transaction? a) 12 b) 60 c) 108 d) 120 1 g = ? mg - Answer 1 g = 1000 mg Do a proportion to calculate how many mg in a transaction. 1 g/1000 mg = 3.6g/x mg x = 3600 mg Divide 3600/30 mg = 120 Answer: d) 120 maximum number per transaction Lidocaine is supplied in packets of 20 vials. Each of 24 nursing stations must have 12 vials. What is the total number of packages needed? a) 10 b) 14 c) 15 d) 40 - Answer Multiply 24 x 12 = 288 Divide 288/20 = 14.4 Round up 14.4 to 15 packages Answer c) 15 What is the percentage concentration of a 400mg/500ml solution? a) .008% b) .08% c) .8% d) 8% formula w/v% = ? x ? - Answer w/v% = g/ml x 100 1 g = 1000 mg Convert 400 mg to g using proportion. 1g/1000mg = xg/400mg x = .4g Calculate formula .4g/500ml x 100 = .08% Answer: b) .08% Using a standard heparin solution (25,000 units/500ml D5W), how many milliliters per hour should the infusion rate be to achieve a dose of 1100 units/hr. a) 2.2 b) 11 c) 22 d) 44 formula: ml/hr = ? x ? - Answer ml/hr = dose/hr x volume of IV/concentration of IV Calculate formula 1100 units / 1 hr x 500 ml / 25000 units (units cancel, left with ml/hr) = 22 ml/hr Answer: c) 22 How many milliliters of Cephalexin suspension 250mg/5ml would provide a patient with 2 teaspoonfuls four times a day for seven days? a) 140 b) 250 c) 280 d) 300 1 tsp = ? ml - Answer 1 tsp = 5 ml not necessary info: 250mg/5ml 2tsp = 10 ml x 4 times a day = 40ml per day x 7 days = 280 ml for full course of treatment. Answer: c) 280 A 55 lb child is to receive Heparin sodium by IV infusion in a dose of 50 units/kg of body weight every 4 hours. How many milliliters of Heparin sodium injection containing 5,000 units/ml will be administered for each dose? a) 0.15 b) 0.25 c) 1.5 d) 2.5 1 kg = ? lbs - Answer 1 kg = 2.2 lbs 1 dose = 50 units / 1 kg every 4 hours Do proportion to convert lbs to kg. 1 kg/2.2 lbs = x kg/55lbs x = 25 kg
Los beneficios de comprar resúmenes en Stuvia estan en línea:
Garantiza la calidad de los comentarios
Compradores de Stuvia evaluaron más de 700.000 resúmenes. Así estas seguro que compras los mejores documentos!
Compra fácil y rápido
Puedes pagar rápidamente y en una vez con iDeal, tarjeta de crédito o con tu crédito de Stuvia. Sin tener que hacerte miembro.
Enfócate en lo más importante
Tus compañeros escriben los resúmenes. Por eso tienes la seguridad que tienes un resumen actual y confiable.
Así llegas a la conclusión rapidamente!
Preguntas frecuentes
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
100% de satisfacción garantizada: ¿Cómo funciona?
Nuestra garantía de satisfacción le asegura que siempre encontrará un documento de estudio a tu medida. Tu rellenas un formulario y nuestro equipo de atención al cliente se encarga del resto.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller STUDYCENTER2024. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for $18.49. You're not tied to anything after your purchase.
