Correct Answer: D

Rationale: The correct answer is D. During an electroencephalogram (EEG), flashes of light or patterns are often used to stimulate the brain and provoke responses, helping to assess brain activity and the potential for seizures. Choices A, B, and C are incorrect because washing the hair, receiving a sedative, and refraining from eating are not usually related to EEG procedures and do not reflect understanding of the teaching provided by the nurse.

Correct Answer: A

Rationale: A sodium level of 122 mEq/L indicates hyponatremia, which is characterized by decreased deep tendon reflexes. Hyponatremia leads to neurological symptoms such as altered reflexes. Choices B, C, and D are not typically associated with hyponatremia. Positive Trousseau's sign is related to hypocalcemia, hypoactive bowel sounds can be seen in paralytic ileus or decreased peristalsis, and sticky mucous membranes are not specific findings related to sodium imbalances.

Correct Answer: A

Rationale: The correct answer is A. The nurse should report these vital signs to the provider immediately as they indicate increased temperature, tachycardia, and tachypnea, which are signs of possible infection or systemic inflammatory response. This could exacerbate the client's unstable angina and needs prompt evaluation. Choices B, C, and D are not as urgent as the vital signs in option A and do not directly indicate a worsening condition in the context of unstable angina.

Correct Answer: B

Rationale: The correct answer is B: Respiratory alkalosis. In this scenario, the client is hyperventilating, leading to excessive elimination of carbon dioxide. As a result, the PaCO2 decreases, causing a decrease in hydrogen ion concentration and an increase in pH, resulting in respiratory alkalosis. Choice A, Respiratory acidosis, is incorrect because the ABG results show a low PaCO2, not an elevated one. Choices C and D, Metabolic acidosis and Metabolic alkalosis, do not align with the ABG results provided, which point towards a respiratory, not metabolic, imbalance.

Correct Answer: B

Rationale: The correct answer is B: "Increase intake of high-potassium foods." Furosemide is a loop diuretic that can lead to hypokalemia, a condition characterized by low potassium levels. To prevent this adverse effect, the client should increase their intake of high-potassium foods. Choice A is incorrect because furosemide typically leads to decreased blood pressure, not increased. Choice C is incorrect because furosemide is used to reduce swelling, not increase it. Choice D is incorrect because the second dose of furosemide should be taken in the morning to prevent nocturia.