Why should shark, swordfish, tilefish, and king mackerel be avoided during pregnancy?
They are high in mercury
They are high in protein
They are low in minerals
They are too hard to digest.
The Correct Answer is A
A. These fish are high in mercury, a heavy metal that can cross the placenta and harm the developing fetal nervous system. Mercury exposure during pregnancy is associated with impaired cognitive development, delays in walking and talking, and other neurological deficits. Pregnant women are advised to avoid shark, swordfish, tilefish, and king mackerel to minimize these risks.
B. While these fish are high in protein, protein itself is beneficial during pregnancy and is not a reason to avoid these fish. The concern is specifically related to mercury content, not protein.
C. These fish are not low in minerals. In fact, fish generally provide important nutrients like selenium, iodine, and omega-3 fatty acids, which are beneficial during pregnancy.
D. Digestibility is not the issue. The problem is the potential toxic effect of mercury, not the difficulty of digesting the fish.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","D","E"]
Explanation
A. Blood does not produce hormones; endocrine glands such as the thyroid, adrenal glands, and pancreas produce hormones. Blood serves as a transport medium for hormones but is not their source.
B. Blood helps maintain body temperature by distributing heat generated by metabolism throughout the body and by constricting or dilating blood vessels to conserve or release heat as needed.
C. Blood itself does not heal injuries. While it carries platelets and clotting factors essential for clot formation, the actual tissue repair process occurs through cellular and tissue mechanisms, not the blood directly.
D. Blood plays a critical role in regulating the immune system by transporting white blood cells, antibodies, and other immune components to sites of infection or injury, helping defend the body against pathogens.
E. Blood transports essential substances such as nutrients, oxygen, and hormones to tissues and carries waste products like carbon dioxide and urea to organs such as the lungs and kidneys for excretion, supporting overall homeostasis.
Correct Answer is A
Explanation
A. Avoiding strong or unusual odors can help reduce nausea and vomiting associated with morning sickness. Many pregnant women are particularly sensitive to smells, and minimizing exposure to odors from cooking, perfumes, or chemicals can help alleviate symptoms.
B. Drinking large amounts of fluids with meals may worsen nausea. Instead, it is recommended to drink small amounts of fluids between meals to stay hydrated without triggering vomiting.
C. Eating larger portions at each meal can increase nausea and vomiting. Smaller, more frequent meals are more effective in managing morning sickness by preventing the stomach from becoming too empty or overly full.
D. Fiber is important for preventing constipation during pregnancy. Reducing fiber intake is not recommended, as it does not alleviate morning sickness and may lead to other digestive problems.
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