A nurse is caring for a primigravida who asks about the function of the placenta.The nurse responds correctly when explaining which of the following are functions of the placenta?
Cushions fetus from maternal movement.
Provides thermoregulation.
Metabolic and gas exchange.
Provides a sterile environment.
The Correct Answer is C
Choice A rationale
The placenta does not cushion the fetus from maternal movement. Instead, the amniotic fluid within the amniotic sac provides cushioning and protection to the fetus from external forces and maternal movements.
Choice B rationale
The placenta does not provide thermoregulation. Thermoregulation is primarily managed by the mother’s body. The placenta’s main functions are related to nutrient and gas exchange, hormone production, and waste removal.
Choice C rationale
The placenta is responsible for metabolic and gas exchange. It provides oxygen and nutrients to the fetus while removing waste products from the fetal blood. This exchange occurs through the placental barrier, which separates maternal and fetal blood.
Choice D rationale
The placenta does not provide a sterile environment. The amniotic sac and its fluid help maintain a sterile environment for the fetus. The placenta’s role is more focused on nutrient and gas exchange, hormone production, and waste removal.
Free Nursing Test Bank
- Free Pharmacology Quiz 1
- Free Medical-Surgical Quiz 2
- Free Fundamentals Quiz 3
- Free Maternal-Newborn Quiz 4
- Free Anatomy and Physiology Quiz 5
- Free Obstetrics and Pediatrics Quiz 6
- Free Fluid and Electrolytes Quiz 7
- Free Community Health Quiz 8
- Free Promoting Health across the Lifespan Quiz 9
- Free Multidimensional Care Quiz 10
View Related questions
Correct Answer is ["B","C","E"]
Explanation
Choice A rationale
Lying down after meals can exacerbate heartburn by allowing stomach acid to flow back into the esophagus. It is generally recommended to remain upright after eating to help prevent this.
Choice B rationale
Remaining upright after meals helps prevent heartburn by keeping stomach acid in the stomach and reducing the likelihood of acid reflux. This can be achieved by sitting or standing for at least 30 minutes after eating.
Choice C rationale
Eating small, frequent meals can help prevent heartburn by reducing the amount of food in the stomach at any one time, which decreases the pressure on the stomach and the likelihood of acid reflux.
Choice D rationale
Drinking large amounts of water before meals can increase the volume in the stomach and may exacerbate heartburn. It is generally better to drink fluids between meals rather than before or during meals.
Choice E rationale
Discussing antacid recommendations with the provider is appropriate. Antacids can help neutralize stomach acid and provide relief from heartburn, but it is important to consult with a healthcare provider to ensure that the chosen antacid is safe for use during pregnancy.
Correct Answer is C
Explanation
Choice A rationale
Taking iron with milk is not recommended because calcium in milk can inhibit the absorption of iron. It is better to take iron supplements with a source of vitamin C, which enhances iron absorption.
Choice B rationale
Iron supplements typically cause constipation rather than loose stools. Common side effects include nausea, vomiting, and dark stools.
Choice C rationale
Taking iron with vitamin C enhances absorption. Vitamin C converts iron into a form that is more easily absorbed by the body, making it more effective in treating iron deficiency anemia.
Choice D rationale
Iron supplements are best absorbed on an empty stomach, but they can cause gastrointestinal discomfort. If this occurs, taking them with a small amount of food may help, but it should not be taken with dairy products or calcium-rich foods.