A nurse is preparing to administer atenolol 50 mg PO daily to a client. The amount available is atenolol 100 mg/tablet. How many tablets should the nurse administer per dose?

(Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero)

To calculate the number of tablets, the nurse should use the following formula:

Number of tablets = (Desired dose / Available dose) x (Available form / Desired form)

In this case, the desired dose is 50 mg, the available dose is 100 mg, the available form is 1 tablet, and the desired form is 1 tablet. Therefore, the formula becomes:

Number of tablets = (50 mg / 100 mg) x (1 tablet / 1 tablet)

Number of tablets = 0.5 x 1

Number of tablets = 0.5

The nurse should round the answer to the nearest tenth, which is 0.5. The nurse should use a leading zero if the answer is less than 1, which is 0.5. The nurse should not use a trailing zero, which means 0.5 and not 0.50.

Choice A reason: Primigravida in spontaneous labor with preterm twins is not at the greatest risk for early postpartum hemorrhage, as preterm births are associated with lower blood loss and smaller placentas. However, this client may have other complications, such as preterm labor, premature rupture of membranes, or fetal growth restriction.

Choice B reason: Primiparous woman (G 2, P 1-0-0-1) being prepared for an emergency cesarean birth for fetal distress is not at the greatest risk for early postpartum hemorrhage, as cesarean births are associated with higher blood loss and larger incisions. However, this client may have other complications, such as infection, wound dehiscence, or thromboembolism.

Choice C reason: Multiparous woman (G 3, P 2-0-0-2) with an 8-hour labor is at the greatest risk for early postpartum hemorrhage, as multiparity and rapid labor are both risk factors for uterine atony, which is the most common cause of early postpartum hemorrhage. Uterine atony is a condition where the uterus fails to contract and retract after delivery, and can cause excessive bleeding and hypovolemic shock.

Choice D reason: Woman with severe preeclampsia on magnesium sulfate whose labor is being induced is not at the greatest risk for early postpartum hemorrhage, as preeclampsia and magnesium sulfate are both risk factors for late postpartum hemorrhage, which occurs after 24 hours of delivery. However, this client may have other complications, such as eclampsia, HELLP syndrome, or placental abruption.