The nurse caring for a woman hospitalized for hyperemesis gravidarum should expect that initial treatment will involve:

Choice A reason: Seizure activity and hypotension are not signs and symptoms of severe preeclampsia, but rather of eclampsia, which is a life-threatening complication of preeclampsia. Eclampsia is characterized by convulsions and coma, and it requires immediate treatment to prevent maternal and fetal death.

Choice B reason: Platelet count of less than 100,000/mm3 and visual problems are signs and symptoms of severe preeclampsia, as they indicate hematologic and neurologic complications. Severe preeclampsia can cause thrombocytopenia, which is a low platelet count that increases the risk of bleeding. It can also cause cerebral edema, which can impair the vision and cause blurred vision, spots, or flashes of light.

Choice C reason: Ankle clonus and epigastric pain are signs and symptoms of severe preeclampsia, as they indicate neuromuscular and hepatic complications. Severe preeclampsia can cause hyperreflexia, which is an exaggerated reflex response that can be elicited by dorsiflexing the ankle and observing rhythmic jerking of the foot. It can also cause liver damage, which can manifest as epigastric pain or right upper quadrant pain.

Choice D reason: Decreased urinary output and irritability are signs and symptoms of severe preeclampsia, as they indicate renal and central nervous system complications. Severe preeclampsia can cause oliguria, which is a reduced urine output of less than 500 mL in 24 hours. It can also cause increased intracranial pressure, which can affect the mood and behavior and cause irritability, anxiety, or confusion.

Choice E reason: Transient headache and +1 proteinuria are not signs and symptoms of severe preeclampsia, but rather of mild preeclampsia, which is a less severe form of the condition. Mild preeclampsia is characterized by blood pressure of 140/90 mm Hg or higher, proteinuria of 1+ or higher, and mild edema. It does not cause severe complications or organ damage, but it can progress to severe preeclampsia if not treated.

Choice A reason: Variability refers to the fluctuations in the FHR that are irregular in amplitude and frequency. It reflects the balance between the sympathetic and parasympathetic nervous systems of the fetus. A normal variability is between 6 and 10 beats/min, which indicates a healthy and well-oxygenated fetus.

Choice B reason: Late decelerations are decreases in the FHR that begin after the peak of a contraction and return to the baseline after the contraction ends. They are caused by uteroplacental insufficiency, which means that the placenta is not delivering enough oxygen and nutrients to the fetus. Mild late decelerations are not reassuring and may indicate fetal hypoxia or acidosis².

Choice C reason: FHR should change as a result of fetal activity, such as movement, sleep, or stimulation. A change in the FHR indicates a responsive and well-oxygenated fetus. A lack of change in the FHR may indicate fetal distress or compromise.

Choice D reason: The average baseline rate is the mean FHR rounded to increments of 5 beats/min during a 10-minute window, excluding periods of marked variability, accelerations, or decelerations. A normal baseline rate is between 110 and 160 beats/min. A baseline rate between 100 and 140 beats/min is not necessarily abnormal, but it may indicate fetal bradycardia (slow heart rate) or tachycardia (fast heart rate), depending on the gestational age and other factors.