Correct Answer: B

Rationale: The correct answer is B: Oranges. Oranges are not a rich source of iron. Iron-rich foods include liver, leafy green vegetables, and kidney beans. Oranges are a good source of vitamin C but are not high in iron. Therefore, if the client selects oranges as an iron-rich food, it indicates a need for additional instructions on choosing foods high in iron.

Correct Answer: B

Rationale: The correct answer is B: Crackles in the lung bases. Crackles in the lung bases are indicative of pulmonary congestion, which is a classic sign of left-sided heart failure. Left-sided heart failure leads to a backup of blood into the lungs, causing fluid leakage into the alveoli and resulting in crackles upon auscultation. Choices A, C, and D are less specific to left-sided heart failure. Jugular vein distention can be seen in right-sided heart failure, peripheral edema can be seen in both right and left-sided heart failure, and bounding peripheral pulses are more indicative of conditions like hyperthyroidism or anemia rather than specifically supporting left-sided heart failure.

Correct Answer: A

Rationale: The correct answer is A: Impaired skin integrity. In this situation, the greatest clinical risk is related to impaired skin integrity due to the potential extravasation of the vesicant. Vesicants are substances that can cause severe tissue damage if they leak into the surrounding tissues. Choices B, C, and D are not the most significant risks in this scenario. Fluid volume excess, acute pain, and peripheral neurovascular dysfunction are not directly associated with leaving the IV in place with a known vesicant for an extended period.

Correct Answer: B

Rationale: The correct interpretation of elevated serum rheumatoid factor in a client with rheumatoid arthritis is confirmation of the autoimmune disease process. Rheumatoid factor is a marker for autoimmune activity, thus confirming the diagnosis of rheumatoid arthritis. Choice A is incorrect as elevated rheumatoid factor does not specifically indicate spread of the disease to the kidney. Choice C is incorrect as elevated rheumatoid factor does not always represent a decline in the client's condition. Choice D is incorrect as elevated rheumatoid factor is not an indication of the onset of joint degeneration, but rather points towards autoimmune activity.

Correct Answer: B

Rationale: The correct answer is B: Recurrent spasms of the airways accompanied by edema and mucus production. Asthma is characterized by bronchospasms, inflammation, swelling of the airways, and increased mucus production. This leads to airway constriction, making it difficult to breathe. Choices A, C, and D do not represent the typical pathology seen in asthma. Chronic dilation and inflammation of the bronchi (Choice A) is more characteristic of bronchiectasis, progressive loss of lung function due to destruction of alveolar walls (Choice C) is seen in conditions like emphysema, and infection of the lung parenchyma (Choice D) is more related to conditions like pneumonia.