Correct Answer: B

Rationale: Uterine hyperstimulation, also known as tachysystole, is a condition where the uterus contracts too frequently and/or too forcefully, leading to a decreased uterine blood flow. This can result in maternal fatigue and decreased oxygenation to the fetus, as mentioned in the scenario. Uterine hyperstimulation can be caused by several factors, including the excessive use of uterotonic medications, such as oxytocin, or the presence of uterine abnormalities.

Correct Answer: B

Rationale: Famotidine belongs to a class of medications known as H2 blockers which work to reduce the production of stomach acid. Antacids, on the other hand, work by neutralizing stomach acid. Taking antacids in conjunction with famotidine can decrease the effectiveness of famotidine as they can interfere with its absorption. Therefore, it is important for the patient to avoid taking antacids while on famotidine therapy to ensure optimal treatment outcomes for gastric acid suppression.

Correct Answer: C

Rationale: The patient's presentation of excessive thirst, frequent urination, and fatigue align with the classic symptoms of diabetes mellitus. The laboratory findings of hypernatremia (high sodium levels), hyperglycemia (high blood sugar levels), and metabolic acidosis further support this diagnosis. In diabetes mellitus, the body is unable to properly regulate blood sugar levels due to either insufficient insulin production (Type 1 diabetes) or ineffective use of insulin by the cells (Type 2 diabetes). This leads to high blood sugar levels, causing symptoms such as polyuria (frequent urination), polydipsia (excessive thirst), and fatigue. The metabolic acidosis is a result of the body's breakdown of fats and proteins for energy due to the lack of glucose utilization in the cells.

Correct Answer: D

Rationale: Activating emergency medical services (EMS) for rapid transport to a stroke center is the most appropriate action for managing a conscious patient with a suspected stroke. Time is critical in stroke care, and receiving specialized treatment at a stroke center as soon as possible can significantly improve outcomes for stroke patients. EMS providers are trained to recognize the signs of stroke and can begin essential pre-hospital care measures while en route to the hospital. Administering aspirin immediately is not recommended without medical evaluation, as certain types of strokes (such as hemorrhagic strokes) can be worsened by aspirin. Placing the patient in a supine position may not be ideal, as maintaining an elevated position can help prevent aspiration in stroke patients. Encouraging the patient to eat and drink is not appropriate, as swallowing difficulties are common in stroke patients and can lead to aspiration pneumonia.

Correct Answer: B

Rationale: In the situation of an obstetric emergency requiring immediate delivery, the priority nursing action is to prepare the delivery room for the birth. This involves ensuring that all necessary supplies and equipment are readily available, the bed is adjusted to the appropriate position, and the healthcare team is prepared to assist with the birth. By expeditiously preparing the delivery room, the healthcare team can facilitate a safe and timely delivery for both the mother and the baby. Notifications to the healthcare provider, administering intravenous fluids, and continuous fetal monitoring can be done simultaneously but preparing the delivery room takes precedence to ensure a prompt response to the emergent situation.