Correct Answer: A

Rationale: The correct answer is A because inflammatory polyps are indeed considered precancerous, meaning they have the potential to develop into cancer over time. By having regular colonoscopies every 3 to 5 years, any new polyps can be detected early and removed before they have a chance to become malignant. This approach helps in preventing the progression of polyps to cancerous lesions, thus reducing the risk of developing colon cancer. Choice B is incorrect because while family history is a risk factor for colon cancer, the presence of inflammatory polyps in Mr. Costigan should not be overlooked or solely attributed to family history. Choice C is incorrect because all polyps have the potential to become cancerous, including inflammatory polyps. Ignoring their presence can lead to missed opportunities for early intervention. Choice D is incorrect because at this stage, the primary focus should be on surveillance and prevention through regular colonoscopies, rather than jumping into discussions about aggressive treatment options.

Correct Answer: B

Rationale: The correct answer is B: Placental bed. Malaria parasites hide in the placental bed during pregnancy to avoid detection by the immune system. This location provides a safe haven for the parasites to survive and replicate without being cleared by the mother's immune response. The placental bed offers a rich blood supply and a favorable environment for the parasites to thrive. Incorrect choices: A: Bone marrow - Malaria parasites do not typically hide in the bone marrow during pregnancy. C: Fetal circulation - Malaria parasites do not hide in the fetal circulation; they primarily reside in the placental bed. D: Uterine muscle - Malaria parasites do not hide in the uterine muscle; the placental bed is the main site of sequestration during pregnancy.

Correct Answer: B

Rationale: The correct answer is B. Ordering hepatic ultrasound annually to follow progression is the appropriate response for hepatic hemangiomas. Biopsy is not recommended due to the risk of bleeding. Surgery is usually not required unless there are complications. Documenting the finding is important but does not address the need for monitoring. Ultrasound allows for non-invasive monitoring of the hemangiomas over time to assess for growth or complications, guiding further management if needed.

Correct Answer: D

Rationale: Maternal smoking during pregnancy can affect fetal development in multiple ways. Smoking can cause low birth weight by restricting oxygen and nutrients to the fetus, leading to growth issues. It can also increase the risk of preterm birth due to the harmful chemicals in cigarette smoke. Furthermore, smoking can affect lung development in the fetus, leading to respiratory issues. Therefore, the correct answer is D - All of the above, as maternal smoking can have a comprehensive impact on fetal development, including low birth weight, preterm birth, and lung development issues.

Correct Answer: B

Rationale: The correct answer is B, Gestational diabetes mellitus. This condition is diagnosed when a pregnant woman exhibits symptoms of diabetes and has elevated fasting blood sugar and abnormal oral glucose tolerance test results. This specific combination of symptoms and test results during pregnancy points towards gestational diabetes mellitus. A: Potential diabetes mellitus - Incorrect. The symptoms combined with abnormal test results suggest an active condition, not potential. C: Clinical diabetes mellitus - Incorrect. While the symptoms and test results indicate diabetes, the context of pregnancy suggests gestational diabetes. D: Chemical diabetes mellitus - Incorrect. This term is not commonly used in medical practice and does not specifically address the condition in the given scenario.