Correct Answer: B

Rationale: The correct answer is B. A respiratory rate of 20 breaths per minute may indicate respiratory distress in a client with chest pain. In a client with a history of coronary artery disease presenting with chest pain, signs of respiratory distress can be an alarming finding. Blood pressure within the normal range (130/80 mm Hg), heart rate of 72 beats per minute, and a temperature of 98.6 degrees Fahrenheit are generally considered within normal limits and may not be as concerning in this context.

Correct Answer: A

Rationale: The correct answer is A because wearing a mask in public can help prevent the spread of TB to others. Choice B is incorrect as taking medication as prescribed helps in treating the infection within the individual but does not directly prevent spreading it to others. Choice C is important for respiratory hygiene but may not be sufficient to prevent transmission. Choice D, isolation until treatment is complete, is crucial for preventing the spread but is not specifically about understanding transmission.

Correct Answer: C

Rationale: The correct answer is C because pain and swelling in the calf can indicate a new or worsening DVT, requiring immediate attention. Bruising on the arms and legs may be a common side effect of anticoagulants but is not as concerning as a potential DVT. Severe headache may indicate other conditions like a migraine or hypertension and is not directly related to DVT. Increased urination is not typically associated with DVT and may point towards other health issues like diabetes or urinary tract infections.

Correct Answer: A

Rationale: Administering erythropoietin is the priority intervention for a client with chronic kidney disease and a low hemoglobin level. Erythropoietin stimulates red blood cell production, helping to manage anemia in these clients. Monitoring blood pressure, oxygen saturation level, and assessing for signs of fatigue are important aspects of care but addressing the anemia by administering erythropoietin takes precedence to improve oxygen-carrying capacity and overall well-being.

Correct Answer: C

Rationale: A temperature of 99.5 degrees Fahrenheit is slightly elevated but not immediately critical. In a postoperative patient, an elevated temperature could indicate an infection, which requires prompt attention to prevent complications. The respiratory rate, blood pressure, and heart rate within normal ranges are important to monitor but do not indicate an immediate need for intervention as an elevated temperature does.