Correct Answer: B

Rationale: Shortness of breath in a client with emphysema may indicate respiratory distress. Assessing the client's respiratory rate and effort is the first priority to determine the severity of the distress and guide appropriate interventions. Administering oxygen therapy (Choice A) could be necessary, but assessing the client first is crucial to tailor the intervention. Intubation (Choice C) is an invasive procedure that is not the initial priority. Increasing oxygen flow rate (Choice D) should only be done after a thorough assessment to avoid potential harm.

Correct Answer: B

Rationale: In a pregnant client at 33 weeks gestation, performing CPR requires tilting the pelvis and thorax at a 30-degree angle to relieve pressure on the vena cava, ensuring proper circulation during compressions. Administering chest compressions at a faster rate (Choice A) may not address the specific needs of a pregnant client in cardiac arrest. Positioning the client flat with legs elevated (Choice C) is not recommended as it can worsen vena cava compression. Calling for immediate assistance and preparing for a cesarean section (Choice D) should be considered only after initiating appropriate CPR modifications.

Correct Answer: B

Rationale: The correct answer is B: Hemoglobin. Erythropoietin stimulates the production of red blood cells, leading to an increase in hemoglobin levels. Monitoring hemoglobin is crucial to assess the effectiveness of the treatment. Choices A, C, and D are incorrect. Serum potassium levels are often monitored in chronic kidney disease, but it is not the primary parameter to evaluate the effectiveness of erythropoietin therapy. White blood cell count and platelet count are not directly influenced by erythropoietin injections for chronic kidney disease.

Correct Answer: B

Rationale: The correct answer is B: 'Restrict oral fluids to 1500 ml per day.' In clients with cirrhosis and ascites, fluid restriction is essential to prevent fluid overload, which can worsen symptoms of liver failure. Option A is incorrect because increasing fluid intake would exacerbate the issue of fluid overload. Option C, while important, is not the best initial response to the client's question about fluid restriction. Option D is incorrect as increasing dietary protein does not directly address fluid restriction in clients with cirrhosis and ascites.

Correct Answer: B

Rationale: The correct action for the nurse to take in response to the return demonstration of using an incentive spirometer is to remind the client to cough after using the device. Coughing helps clear secretions from the lungs and promotes lung expansion. Instructing the client to inhale more deeply (Choice A) is not necessary as the primary focus after using the spirometer is to clear secretions. Praising the client for correct usage (Choice C) is positive but does not address the essential step of coughing. Suggesting increasing the frequency of spirometer use (Choice D) is not the immediate action needed after the demonstration.