Correct Answer: B

Rationale: Major histocompatibility complex (MHC) class I molecules are responsible for presenting endogenous antigens, such as viral or intracellular proteins, to CD8+ T cells. These antigens are derived from within the cell, either synthesized within the cell itself or taken up from the cytoplasm. CD8+ T cells, also known as cytotoxic T cells, recognize antigens presented by MHC class I molecules and play a key role in cell-mediated immunity by destroying infected or abnormal cells.

Correct Answer: A

Rationale: The described presentation of a painless, slowly enlarging mass in the right neck just above the clavicle, along with the cytology findings of clusters of polygonal cells with clear cytoplasm and centrally located nuclei, is classic for parathyroid adenoma. Parathyroid adenomas are benign tumors arising from one of the parathyroid glands, which are typically located in the neck region close to the thyroid gland. The clear cytoplasm and centrally located nuclei of the cells are characteristic histological features of parathyroid adenomas. This condition can often lead to hyperparathyroidism, characterized by increased levels of parathyroid hormone (PTH) and hypercalcemia. Treatment involves surgical removal of the adenoma.

Correct Answer: C

Rationale: In emergency situations, pregnant women are typically given priority when it comes to transportation to the hospital. This is because they have unique medical needs and potential complications that require immediate attention. It is important to ensure the well-being of both the mother and the unborn child. Additionally, the health and safety of the unborn child are critical considerations in determining priority for medical treatment and transport. Therefore, the pregnant woman should be the priority for the rescue team to transport to the hospital.

Correct Answer: C

Rationale: Meningomyelocele is a type of neural tube defect where there is a protrusion of the spinal cord, cerebrospinal fluid, and meninges through a defect in the vertebrae, forming a sac on the surface of the back. This condition occurs during fetal development when the neural tube fails to close completely, leading to the exposure of the spinal cord and its coverings. This herniation can result in a range of neurological deficits and complications, requiring surgical repair shortly after birth to prevent further damage and infections.

Correct Answer: C

Rationale: When documenting pitting edema in a patient's notes, it is important to include details such as the degree of edema (A), duration of indentation (B), and depth of edema (D) as these parameters are relevant in assessing the severity of the condition and monitoring changes over time. However, mentioning the degree of temperature (C) is not directly related to assessing pitting edema. Temperature is typically assessed as part of a general physical assessment for signs of infection or inflammation and is not specifically needed when documenting pitting edema.