Nursing Process Questions

Correct Answer: C

Rationale: The nurse interprets this as respiratory alkalosis because the patient is likely experiencing hyperventilation, leading to a decrease in CO2 levels and respiratory alkalosis. This is indicated by an increase in pH and a decrease in PaCO2 on arterial blood gas analysis. Metabolic acidosis (choice B) is characterized by low pH and low bicarbonate levels, not seen in this scenario. Respiratory acidosis (choice A) is characterized by high PaCO2 levels and low pH, which is not the case here. Metabolic alkalosis (choice D) is characterized by high pH and high bicarbonate levels, which is not consistent with the patient's presentation.

Correct Answer: A

Rationale: The correct answer is A: Weight. Monitoring daily weight is crucial in assessing fluid retention and worsening heart failure symptoms. Weight gain can indicate fluid overload, a common complication in heart failure. The other choices (B: Appetite, C: Calorie count, and D: Abdominal girth) are not as directly related to monitoring heart failure severity. Appetite and calorie count may be affected by various factors unrelated to heart failure, while abdominal girth may not provide specific information on fluid status. Monitoring weight allows for early intervention and adjustments in treatment to prevent exacerbation of heart failure symptoms.

Correct Answer: A

Rationale: The correct answer is A. In the Snellen eye chart test, the first number (20) represents the distance at which the client is viewing the chart, and the second number (40) represents the distance at which a person with normal vision can read the same line. Therefore, a client with 20/40 vision sees letters at 20 feet that others with normal vision can read at 40 feet. Choices B, C, and D are incorrect because they do not accurately reflect the interpretation of the 20/40 vision result from the Snellen eye chart test. B is incorrect because the client does not see letters at 40 feet that others can read at 20 feet. Choices C and D are incorrect because the Snellen eye chart test measures visual acuity, not color perception.

Correct Answer: C

Rationale: The correct answer is C because in the humoral immune response, B cells are stimulated by T helper cells or macrophages to differentiate into plasma cells that produce antibodies or memory cells. This process involves the production of specific antibodies that target the foreign antigen. Choice A is incorrect because B cells do not phagocytize antigens; instead, they produce antibodies. Choice B is incorrect because T cells do not turn into plasma cells. It is the B cells that differentiate into plasma cells in the humoral immune response. Choice D is incorrect because T cells do not produce antibodies. T cells are involved in cell-mediated immunity, not the humoral immune response.

Correct Answer: D

Rationale: The correct answer is D: Impaired gas exchange related to alveolar-capillary membrane changes. This nursing diagnosis is appropriate for a patient with pneumonia and lower lobe infiltrates because pneumonia causes inflammation and fluid accumulation in the alveoli, impairing gas exchange. The nurse chose this diagnosis based on the patient's chest x-ray results indicating lower lobe infiltrates, which directly affect gas exchange. Choice A is incorrect because "ineffective breathing pattern" does not specifically address the underlying physiological issue of impaired gas exchange. Choice B is incorrect as it focuses on infection risk from the chest x-ray procedure, not the patient's medical condition. Choice C is incorrect as dehydration is not directly related to pneumonia and infiltrates.