A nurse is preparing to administer liquid mycostatin 600,000 units PO TID. Available is mycostatin 100,000 units/mL. How many m. should the

nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Choice a reason:
The pattern of contractions can be a sign of true labor when they are regular, frequent, and increase in intensity and duration over time. In true labor, contractions do not subside with rest or hydration and become progressively more organized. However, contractions alone can be misleading, as Braxton Hicks contractions may also present a pattern but do not lead to cervical changes.

Choice b reason:
The station of the presenting part refers to the position of the baby's head (or presenting part) in relation to the ischial spines of the mother's pelvis. While the station can indicate how far labor has progressed, it is not a definitive sign of true labor. The station changes as labor progresses, but it can also be affected by other factors such as the baby's position.

Choice c reason:
Rupture of the membranes, commonly known as water breaking, can occur before or during labor. While it is a sign that labor may be imminent, it does not confirm true labor. Some women may experience premature rupture of membranes without contractions or cervical changes.

Choice d reason:
Changes in the cervix, including effacement (thinning) and dilation (opening), are the most reliable signs of true labor. Effacement is measured in percentages, and dilation is measured in centimeters. The cervix must be 100% effaced and dilated to 10 centimeters for childbirth to occur. These changes are a direct result of true labor contractions and indicate that the body is preparing for delivery.

Choice a reason:
Methylergonovine is a medication used to prevent or control postpartum hemorrhage by contracting the uterus. However, it is contraindicated in patients with hypertension, as it can further increase blood pressure. Given that the client's blood pressure is already elevated at 146/94 mm Hg, administering methylergonovine could pose a risk. Therefore, this prescription requires clarification from the provider before administration.

Choice b reason:
Inserting an indwelling urinary catheter can be a standard procedure after vaginal birth if the client is unable to void or if accurate measurement of urine output is needed. This does not require clarification unless there are specific contraindications or the client's condition does not warrant it.

Choice c reason:
Obtaining a laboratory study of prothrombin and partial thromboplastin time is a common practice to assess the blood's clotting ability, especially if there is a concern for bleeding disorders or if the client is at risk for postpartum hemorrhage. This prescription is clear and does not require further clarification.

Choice d reason:
Administering oxygen by nonrebreather mask at 5 L/min may be indicated if the client is showing signs of respiratory distress or hypoxia. The client's current respiratory rate is within normal limits, but if there are concerns about oxygenation, this intervention would be appropriate.