Which of the ff vessels is often used for grafting?

Correct Answer: B

Rationale: The correct answer is B because the internal mammary and internal thoracic arteries in the chest are commonly used for grafting due to their size, durability, and long-term patency. These arteries have a better track record for successful grafting procedures compared to the other options. The basic and cephalic veins in the arm (Option A) are typically used for venous procedures, not arterial grafting. The saphenous vein in the leg (Option C) is also commonly used for grafting, but the internal mammary and internal thoracic arteries are preferred for their better outcomes. The radial artery in the arm (Option D) is less commonly used for grafting compared to the internal mammary and internal thoracic arteries.

Correct Answer: A

Rationale: The correct answer is A because providing clear liquids only until the patient can swallow solid foods is not a recommended nursing intervention to prevent aspiration. Clear liquids do not require the same level of swallowing coordination as solid foods, so it may not help improve swallowing ability. B: Having the patient swallow twice after each bite can help clear the throat and reduce the risk of aspiration. C: Placing food on the unaffected side of the mouth can help direct the food towards the stronger side for swallowing. D: Checking the patient's mouth for pocketing of food is important to ensure that food is not being retained in the mouth, which could lead to aspiration.

Correct Answer: C

Rationale: Rationale: Choice C is correct because antibodies are indeed produced by B-cells as part of the adaptive immune response. B-cells differentiate into plasma cells that produce antibodies to target specific antigens. This process is essential for generating immunity against pathogens. Incorrect Choices: A: Antibody-mediated defense occurs through the B-cell system, not the T-cell system. T-cells are involved in cell-mediated immunity. B: Cellular immunity is mediated by T-cells, not antibodies produced by B-cells. T-cells directly attack infected cells. D: Lymphocytes can increase during an allergic response, but this does not specifically relate to immunity through antibody production by B-cells.

Correct Answer: A

Rationale: The correct initial action for the nurse to take is A: Try to have the client breathe slower. This is because the client may be experiencing respiratory distress, and slowing down their breathing can help improve oxygenation. Giving O2 via nasal cannula (B) should be considered if the client's oxygen saturation is low after trying to slow down their breathing. Administering sodium bicarbonate (C) is not the appropriate initial action unless the client is experiencing severe acidosis. Monitoring the client's fluid balance (D) is important but not the best initial action in this scenario where respiratory distress is the concern.

Correct Answer: C

Rationale: The correct answer is C: 5 years. In ALS, 50% of patients have a life expectancy of around 3-5 years from the time of diagnosis. This is due to the progressive nature of the disease, leading to rapid deterioration of motor neurons and muscle function. Choice A (3 years) is too specific and may not apply to exactly 50% of patients. Choice B (10 years) and D (20 years) are too optimistic and do not align with the typical prognosis of ALS, where the majority of patients have a shorter life expectancy. Therefore, based on the average survival rates and disease progression, choice C is the most accurate representation of the normal life expectancy for 50% of ALS patients.