A nurse is teaching a client who has a history of genital herpes and is at 32 weeks of gestation. Which of the following statements should the nurse include in the teaching?

• Prolonged rupture of membranes: Rupture of membranes lasting longer than 18 hours increases the risk of ascending bacterial infection, leading to conditions such as endometritis. This is a known risk factor for postpartum infection, especially following cesarean delivery.
• Polyhydramnios: An excessive amount of amniotic fluid overdistends the uterus, which can impair its ability to contract effectively postpartum, making uterine atony more likely. Atony can lead to increased bleeding or retained lochia.
• Prenatal anemia: While not directly causing infection, anemia impairs immune function, increasing a person's susceptibility to postpartum infections. It can also worsen recovery from infections or surgical wounds.
• High parity: Multiple prior pregnancies stretch the uterus over time, reducing myometrial tone, which predisposes to uterine atony. This makes it harder for the uterus to contract adequately after delivery, increasing the risk for hemorrhage or subinvolution.

Miosis : Pinpoint pupils are a hallmark of opioid overdose due to stimulation of the parasympathetic nervous system. This finding helps distinguish opioid toxicity from other types of substance use, which often cause pupil dilation instead.

Respiratory depression : Opioids depress the medullary respiratory centers in the brainstem, leading to slowed breathing. A respiratory rate of 10/min is significantly reduced and signals impaired ventilation, making it a critical diagnostic clue.

Opioid overdose: The clinical signs—needle marks, sedation, pinpoint pupils, bradypnea, and a positive response to naloxone—all strongly point to an opioid overdose. A similar prior episode adds to the likelihood of chronic opioid misuse.

Alcohol intoxication: While alcohol can depress the central nervous system, it does not typically cause miosis or respond to naloxone. Also, the pattern of rapid reversal with naloxone suggests opioid involvement rather than alcohol alone.

Benzodiazepine overdose: Though it shares features like sedation and respiratory depression with opioid overdose, benzodiazepine toxicity does not cause miosis, and naloxone has limited or no effectiveness as a reversal agent.

Cocaine intoxication : Typically causes stimulant effects including mydriasis (dilated pupils), increased heart rate, hypertension, and agitation. These are not consistent with the symptoms in this case, which reflect CNS depression.