A nurse is providing teaching with an antepartum client who has a new diagnosis of genital herpes simplex virus 2 (HSV-2). Which of the following information should the nurse include?

Fetal hypoxia occurs when oxygen delivery to the fetus is compromised. In this client, the contraction pattern of very frequent, prolonged contractions every 1–2 minutes lasting 90–120 seconds results in uterine tachysystole, which reduces uteroplacental blood flow during contractions. Normal contraction frequency is no more than 5 contractions in 10 minutes. Excessive contractions increase uterine tone, decrease relaxation time, and limit oxygen exchange, causing fetal heart rate changes like late decelerations and minimal variability. This leads to fetal hypoxia, a critical risk in labor complicated by these contraction abnormalities.

Rationale for incorrect Response 1 options:
Abruptio placentae is a sudden placental separation causing bleeding and pain, which is not directly indicated here, as there is no vaginal bleeding or sharp pain described.
Uterine tachysystole describes the contraction pattern itself rather than a complication; it is a cause, not the adverse outcome.
Chorioamnionitis is infection of fetal membranes, usually indicated by fever and uterine tenderness, neither present here.

Rationale for incorrect Response 2 options:
Gestational hypertension contributes to fetal risk but is not the immediate cause of the current fetal distress.
Fetal heart rate variability describes fetal condition but does not cause fetal hypoxia; rather, it signals it.
Intrauterine growth restriction indicates chronic fetal compromise but is not the direct cause of acute fetal hypoxia during labor contractions.

Take home points:

• Uterine tachysystole causes reduced oxygen delivery by limiting uterine relaxation time, risking fetal hypoxia.
• Fetal hypoxia manifests as late decelerations and minimal variability on fetal monitoring.
• Abruptio placentae and chorioamnionitis have distinct clinical signs, which differ from those caused by contraction abnormalities.
• Differentiating causes of fetal distress is vital for timely intervention during labor to prevent adverse outcomes.

• Moderate maternal bleeding: Worsening condition. HELLP syndrome involves platelet consumption and liver dysfunction that can cause coagulopathy and bleeding risk. New or increased bleeding signals disease progression and possible disseminated intravascular coagulation (DIC).
• Client reports ringing in ears: Worsening condition. Tinnitus can be a sign of hypertensive encephalopathy or central nervous system involvement from severe preeclampsia/HELLP, indicating neurological deterioration.
• BP 180/100 mm Hg: Worsening condition. A significant increase from baseline hypertension signals uncontrolled blood pressure and heightened risk for stroke, organ damage, and progression of HELLP.
• Client reports sharp, stabbing abdominal pain: Worsening condition. This could indicate hepatic hematoma or infarction, a serious complication of HELLP syndrome due to liver injury.
• FHR 80/min with absent variability: Worsening condition. Fetal bradycardia with absent variability indicates fetal distress, often from placental insufficiency related to maternal vascular compromise.
• PT 12 seconds: Indication of improving condition. Normal prothrombin time (PT range ~11-13.5 seconds) suggests stable coagulation status, indicating no worsening coagulopathy or bleeding tendency at this moment.