Adult Health 2 Final Exam

Correct Answer: B

Rationale: When dealing with a client suspected of having MRSA, the nurse should implement contact precautions to prevent the spread of infection. This includes using gowns and gloves, along with following proper hand hygiene practices. Sending wound drainage for culture and sensitivity may be necessary for diagnostic purposes, but it is not directly related to preventing the spread of infection in this case. Using standard precautions and wearing a mask are not sufficient when dealing with MRSA; contact precautions are specifically required to prevent transmission. Monitoring the client's white blood cell count is important in assessing infection status but is not a primary intervention to prevent the spread of MRSA.

Correct Answer: C

Rationale: The correct answer is C: Positive urine ketones. In diabetic ketoacidosis (DKA), the body breaks down fat for energy due to a lack of insulin, leading to ketone production. Positive urine ketones are a hallmark laboratory finding in DKA as they directly reflect the presence of ketosis. Choice A, serum glucose of 180 mg/dL, may be elevated in DKA, but it is not specific to this condition. Choice B, blood pH of 7.30, often shows acidosis in DKA, but urine ketones are more specific to the presence of ketosis. Choice D, serum bicarbonate of 25 mEq/L, would typically be low in DKA due to acidosis rather than elevated.

Correct Answer: B

Rationale: The correct answer is B: 'Take all prescribed medications as directed.' This instruction is the most important because adherence to the prescribed medication regimen is crucial in treating tuberculosis effectively and preventing the development of drug-resistant TB. While choice A is important for infection control, ensuring treatment adherence through proper medication intake takes precedence. Choice C is also essential for monitoring progress but is not as critical as ensuring medication compliance. Choice D is relevant for preventing transmission but is not as crucial as ensuring proper treatment by taking medications as directed.

Correct Answer: D

Rationale: A glucose level of 50 mg/dL is indicative of hypoglycemia, which requires immediate intervention to prevent further complications. Hypoglycemia can lead to serious consequences such as altered mental status, seizures, and even coma if not promptly addressed. The other options do not present immediate life-threatening conditions that require urgent intervention. Shortness of breath with a hemoglobin of 8 grams may indicate anemia but does not require immediate intervention. Bleeding from a finger stick with a prothrombin time of 30 seconds may suggest clotting issues, which are important but not as immediately critical as hypoglycemia. Being febrile with an elevated WBC count could indicate infection, which is concerning but not as urgently critical as hypoglycemia.

Correct Answer: C

Rationale: The correct intervention for a client experiencing difficulty expectorating thick secretions due to pneumonia is to encourage increased fluid intake. Increasing fluid intake helps to thin secretions, making them easier to expectorate. Administering antibiotics (Choice A) is important in treating pneumonia but does not directly address the issue of thick secretions. Chest physiotherapy (Choice B) may help in some cases, but increasing fluid intake is a more straightforward and effective intervention. Providing humidified oxygen (Choice D) can help with oxygenation but does not directly address the problem of thick secretions.