A nurse is teaching about car seat safety to the parents of a newborn who was delivered at 38 weeks of gestation. Which of the following statements by a parent indicates an understanding of the teaching?

Platelet count 90,000/mm3: Sign of Potential Worsening Condition - A decreased platelet count may indicate worsening preeclampsia and a risk of developing HELLP syndrome or thrombocytopenia.

Hematuria: Sign of Potential Worsening Condition - Hematuria suggests potential kidney involvement, which is a serious complication of preeclampsia, indicating a worsening condition. Positive clonus: Sign of Potential Worsening Condition - Positive clonus is a neurological sign associated with preeclampsia and indicates hyperreflexia, which can lead to seizures if untreated. Proteinuria 2+: Sign of Potential Worsening Condition - Increased proteinuria indicates ongoing kidney dysfunction, which is a worsening sign of preeclampsia.

Leukorrhea: Sign of Potential Improvement - Leukorrhea, an increase in vaginal discharge, may indicate a reduction in cervical mucus plug, which is a normal finding in late pregnancy.

BUN 40 mg/dL: Sign of Potential Worsening Condition - Elevated blood urea nitrogen (BUN) levels indicate impaired kidney function, which is a worsening sign of preeclampsia and can lead to complications such as acute kidney injury.

Rationale:

A. Back pain following intercourse at 36 weeks of gestation may be common and is not typically indicative of an urgent issue.

B. Severe vomiting in early pregnancy could indicate hyperemesis gravidarum, which may require immediate assessment and intervention to prevent dehydration and electrolyte imbalances.

C. Frequent urination at 10 weeks of gestation is common due to hormonal changes and increased pressure on the bladder from the growing uterus, but it does not typically require immediate assessment unless accompanied by other concerning symptoms.

D. Periodic tingling of the fingers at 24 weeks of gestation could be due to carpal tunnel syndrome, which is common in pregnancy but does not usually require urgent assessment unless severe or accompanied by other symptoms.