When evaluating a patient for sexually transmitted infections (STIs), the nurse should be aware that the most common bacterial STI is:

Choice A reason: This is not a good intervention, as it may worsen the symptoms of faintness, dizziness, and agitation. Standing up can cause a sudden drop in blood pressure (orthostatic hypotension), which can reduce the blood flow to the brain and the fetus. This can cause lightheadedness, blurred vision, and loss of consciousness in the woman, as well as fetal distress or hypoxia.

Choice B reason: This is not a good intervention, as it may also worsen the symptoms of faintness, dizziness, and agitation. Lying supine can cause compression of the inferior vena cava (a large vein that returns blood to the heart) by the gravid uterus, which can reduce the cardiac output (the amount of blood pumped by the heart) and the blood pressure. This can cause nausea, sweating, and visual disturbances in the woman, as well as fetal distress or hypoxia.

Choice C reason: This is not a good intervention, as it may not improve the symptoms of faintness, dizziness, and agitation. Sitting down and holding the arm in a dependent position can lower the blood pressure in the arm, but not in the rest of the body. This can cause inaccurate readings of the blood pressure and delay the detection of hypotension or hypertension. This can also cause discomfort and pain in the arm due to impaired circulation.

Choice D reason: This is the best intervention, as it can relieve the symptoms of faintness, dizziness, and agitation by improving the blood flow to the brain and the fetus. Turning to the left side can reduce the pressure of the uterus on the inferior vena cava and increase the cardiac output and the blood pressure. This can also optimize the placental perfusion (the blood flow to the placenta) and the fetal oxygenation.

Choice A reason: Intense abdominal pain is the most prevalent clinical manifestation of abruptio placentae, as it indicates the detachment of the placenta from the uterine wall and the bleeding into the uterine muscle. The pain can be localized or diffuse, and it can be constant or intermittent. The pain can also radiate to the back or the shoulder.

Choice B reason: Cramping is not the most prevalent clinical manifestation of abruptio placentae, as it is not specific to the condition. Cramping can occur in normal pregnancy or in other complications such as preterm labor, infection, or cervical insufficiency.

Choice C reason: Uterine activity is not the most prevalent clinical manifestation of abruptio placentae, as it is not specific to the condition. Uterine activity can occur in normal pregnancy or in other complications such as preterm labor, infection, or placenta previa.

Choice D reason: Bleeding is not the most prevalent clinical manifestation of abruptio placentae, as it may or may not be present. Bleeding can be concealed or revealed, depending on the location and extent of the placental separation. Concealed bleeding occurs when the blood is trapped behind the placenta and does not exit the vagina. Revealed bleeding occurs when the blood passes through the cervix and exits the vagina.