The nurse teaches a pregnant woman about the presumptive, probable, and positive signs of pregnancy.
The woman demonstrates understanding of the nurse's instructions if she states that a positive sign of pregnancy is:.

Choice A rationale:
A review of systems is essential in a health history because it helps in understanding the patient's overall health status and can reveal symptoms or issues that the patient might not consider significant. This information aids in making a comprehensive assessment.
Choice D rationale:
Height, weight, and BMI data are crucial parameters to assess a patient's nutritional status and overall health. These measurements help in identifying obesity, malnutrition, or other health-related issues.
Choice E rationale:
Diet and nutritional intake provide insights into the patient's eating habits, dietary restrictions, allergies, and potential deficiencies. This information is vital for assessing the patient's overall health and planning appropriate interventions.
Choice F rationale:
Family medical history is valuable as it helps in identifying genetic predispositions, hereditary diseases, and other health conditions that might run in the family. This information is crucial for understanding the patient's risk factors and developing a personalized healthcare plan. Choice B and C rationales: Physical assessment is indeed essential in healthcare, but it is not a part of the health history, which specifically focuses on the patient's past and current health status, medical conditions, medications, allergies, surgeries, and lifestyle habits. Similarly, a sexual history is important, especially for specific medical conditions, but it might not be relevant to every patient and might not always be included in the general health history.

Choice A rationale:

Ask her to turn to one side. The supine position during labor can compress the vena cava, reducing blood flow to the uterus and potentially compromising fetal oxygenation. Turning the woman to her side, especially the left side, can relieve this pressure and improve blood flow to the uterus, ensuring adequate oxygen supply to the fetus. This position change is crucial for the well-being of both the mother and the baby during labor.

Choice B rationale:

Elevate her feet and legs. Elevating the woman's feet and legs might not be effective in relieving the pressure on the vena cava, as it does not change the orientation of the uterus in relation to the vena cava. Turning the woman to her side is a more appropriate and effective action to improve blood flow to the uterus and fetus.

Choice C rationale:

Take her blood pressure. While monitoring the woman's blood pressure is essential during labor, it is not the most appropriate action in this situation. The priority is to relieve the compression of the vena cava by changing the woman's position.

Choice D rationale:

Determine whether fetal tachycardia is present. Monitoring the fetal heart rate is crucial during labor, but the woman's position should be the immediate concern if she is lying in the supine position. Changing her position to relieve the vena cava compression takes precedence to ensure adequate oxygenation to the fetus.