A nurse is caring for a client who is experiencing severe pain during active labor.
Which of the following medications should the nurse plan to administer and document in the client's medical record?

Choice A rationale

Premature newborns have immature respiratory and neurological systems, making them vulnerable to respiratory compromise and apnea in a car seat. A car seat test prior to discharge assesses their ability to maintain adequate oxygenation and heart rate while positioned in the car seat for a prolonged period, ensuring safety.

Choice B rationale

The retainer clip should be positioned at the level of the newborn's armpits, not the abdomen. Proper placement at the armpit level ensures that the harness straps are snug over the shoulders and chest, effectively restraining the infant and preventing ejection in the event of a collision, optimizing crash protection.

Choice C rationale

Newborns, especially premature ones, must always be placed in a rear-facing car seat in the back seat of the vehicle. Rear-facing provides optimal support for the newborn's fragile head, neck, and spine, distributing crash forces over the entire back and significantly reducing the risk of severe injuries in a collision.

Choice D rationale

The recommended angle for a rear-facing car seat is typically between 30 to 45 degrees, depending on the specific car seat model, not 60 degrees. This recline angle is crucial to prevent the newborn's head from falling forward and compromising their airway, which is particularly critical for a premature infant with underdeveloped neck control. .

Choice A rationale: Blood pressure readings below 160/110 mm Hg overnight indicate some level of blood pressure control, which is a positive sign in hypertensive pregnancy conditions. The goal is to maintain pressures below this threshold to reduce risk of end-organ damage. Stable or lower pressures reduce cerebral and placental ischemia risk. Therefore, resting well with controlled BP suggests no immediate worsening, indicating progression is stable at this point.

Choice B rationale: A decrease in headache intensity temporarily is a favorable clinical sign. Headache in preeclampsia is caused by cerebral edema and vasospasm, so improvement indicates less neurological irritation or pressure. However, this is a transient improvement and must be interpreted cautiously, but the reduction alone does not indicate a worsening condition, so it is not a marker of poor progression.

Choice C rationale: An increased headache intensity rating to 7/10 signals significant neurological involvement and increased cerebral irritation, typical of worsening preeclampsia or impending eclampsia. Severe headaches in pregnancy with hypertension indicate cerebral vasospasm or edema, which may lead to seizures if untreated. This is a critical sign requiring urgent intervention to prevent maternal and fetal morbidity.

Choice D rationale: Persistent visual disturbances such as seeing spots or flashes are neurological symptoms indicating retinal or cerebral involvement due to vasospasm, ischemia, or edema. These symptoms are common in severe preeclampsia and herald worsening disease. Visual symptoms result from endothelial dysfunction affecting cerebral and retinal vessels, requiring immediate evaluation to prevent progression to eclampsia.

Choice E rationale: Epigastric discomfort reflects stretching or ischemia of the liver capsule from hepatic involvement in severe preeclampsia or HELLP syndrome. This pain typically presents as right upper quadrant or epigastric pain due to hepatocellular injury or microvascular thrombosis. It is a warning sign of multisystem involvement and potential progression to life-threatening complications such as hepatic rupture.

Choice F rationale: Hyperactive deep tendon reflexes (3+ to 4+) and positive clonus are clinical signs of central nervous system irritability caused by increased excitability of motor neurons. This occurs due to cerebral vasospasm and ischemia in severe preeclampsia and predicts risk for seizures (eclampsia). These neurological signs are crucial in assessing disease severity and necessitate urgent management.

Choice G rationale: Urine output between 25 and 55 mL/hr approaches the lower limit of normal (normal ≥30 mL/hr). Reduced urine output in preeclampsia indicates renal hypoperfusion or injury due to endothelial dysfunction and vasospasm, which can progress to acute kidney injury. Monitoring urine output is essential as oliguria signals worsening renal compromise, increasing maternal and fetal risk.