Correct Answer: C

Rationale: The correct answer is C: bacteria. Hepatitis is primarily caused by viruses (such as Hepatitis A, B, C), toxins (like alcohol or certain medications), and chemicals/drugs. Bacteria do not typically cause hepatitis as it is a viral infection that affects the liver. Therefore, choice C is the exception among the listed causes. Viruses directly target liver cells, toxins can damage the liver, and certain chemicals/drugs can lead to liver inflammation. Hence, bacteria do not play a significant role in causing hepatitis.

Correct Answer: D

Rationale: The correct answer is D: 2, 4, 5, and 6. 1. Room humidifier (choice 2) helps to keep the air moist, which can ease sinus pressure and discomfort. 2. Hot moist packs (choice 4) can provide relief by reducing congestion and promoting sinus drainage. 3. Percussion and postural drainage (choice 5) can help loosen mucus and improve drainage. 4. Semi-fowler's position (choice 6) can also aid in drainage and reduce sinus pressure. Choices A, B, and C are incorrect because they do not include all the recommended interventions that can help increase comfort in a patient with sinusitis. Each of the incorrect choices is missing at least one crucial recommendation that is beneficial for managing sinusitis symptoms.

Correct Answer: B

Rationale: The correct response is B: Notify the physician immediately and expect an order for factor VIII. In a patient with hemophilia A, which is a deficiency of clotting factor VIII, bleeding into a joint can lead to serious complications. The nurse should notify the physician promptly because the patient may need factor VIII replacement therapy to stop the bleeding and prevent further damage. This is a medical emergency requiring timely intervention. Choices A, C, and D are incorrect: A: Palpating the elbow could exacerbate the bleeding and cause further damage. C: Ordering an x-ray would delay the crucial factor VIII replacement therapy needed to manage the bleeding. D: Applying heat can increase blood flow to the joint, worsening the bleeding.

Correct Answer: D

Rationale: The correct answer is D: "I will have my potassium level checked." Furosemide is a loop diuretic that can cause potassium loss, leading to hypokalemia. Monitoring potassium levels is crucial to prevent complications such as cardiac arrhythmias. A: Monitoring urine sodium is not typically necessary for furosemide therapy. B: Prothrombin time monitoring is unrelated to furosemide therapy. C: Monitoring calcium levels is not directly affected by furosemide use. In summary, monitoring potassium levels is essential due to the potential for hypokalemia with furosemide, while the other options are not directly relevant to this medication.

Correct Answer: C

Rationale: The nurse would identify platelets at 115,000/ul as an abnormal finding because it is below the normal range of 150,000-450,000/ul. Low platelet count can lead to increased bleeding risk. RBC count and hematocrit levels are within normal ranges, making them normal findings. Option D is incorrect as platelets are abnormal.