Correct Answer: A

Rationale: The correct answer is A: Administer antibiotics. Antibiotics are crucial in treating sepsis as they help to fight the underlying infection causing the condition. Administering antibiotics promptly can prevent the infection from spreading and worsening. Fluids (choices B and C) are important for treating sepsis to maintain blood pressure and support organ function, but antibiotics are the primary intervention to target the infection. Administering oxygen (choice D) may be necessary to support respiratory function in septic patients, but it is not the most effective action to address the underlying infection.

Correct Answer: A

Rationale: The correct answer is A: Increased respiratory rate and dyspnea. After a lung resection, complications like atelectasis or pneumonia can occur, leading to respiratory distress. Monitoring respiratory rate and dyspnea helps detect these issues early. Incorrect choices: B: Constipation and abdominal distension are not directly related to post-operative lung resection complications. C: Nausea and vomiting are more likely related to gastrointestinal issues rather than lung resection. D: Muscle weakness and fatigue are not specific signs of complications following a lung resection.

Correct Answer: A

Rationale: The correct answer is A: Administer nitroglycerin. Nitroglycerin is the recommended initial medication for chest pain in a client with a history of myocardial infarction. It helps dilate blood vessels, improving blood flow to the heart, and reducing chest pain. Aspirin (choice B) is also usually given to reduce blood clot formation, but nitroglycerin is the priority for immediate relief. Morphine (choice C) may be used if nitroglycerin is ineffective, and beta blockers (choice D) are typically used for long-term management of heart conditions, not for immediate relief of chest pain.

Correct Answer: A

Rationale: The correct answer is A: Blood urea nitrogen (BUN). In CKD, the kidneys are unable to effectively filter waste products, leading to an increase in BUN levels. Elevated BUN indicates impaired kidney function. Calcium, potassium, and sodium levels may also be affected in CKD, but they are more likely to be imbalanced rather than consistently elevated. Calcium levels may be low due to impaired vitamin D activation, potassium levels may be high due to decreased excretion, and sodium levels can fluctuate based on fluid status. Therefore, while these lab values may be abnormal in CKD, BUN is the most consistently elevated marker of kidney dysfunction.

Correct Answer: C

Rationale: The correct quadrant for tenderness in suspected appendicitis is the lower right quadrant (Choice C). This is because the appendix is located in the lower right abdomen. Appendicitis typically presents with pain starting around the navel and then localizing to the lower right quadrant. The other choices, upper right (Choice A), upper left (Choice B), and lower left (Choice D) are incorrect as they do not correspond to the typical location of the appendix. Upper right quadrant is where the liver and gallbladder are situated, upper left quadrant contains the stomach and spleen, and lower left quadrant has the colon and left ovary/testis.