Which diagnostic test is used to confirm tuberculosis (TB) infection?

Correct Answer: C

Rationale: The Mantoux skin test, also known as the Tuberculin Skin Test (TST), is used to confirm tuberculosis (TB) infection. This test involves injecting a small amount of tuberculin protein derivative under the top layer of the skin and then evaluating the immune system's response to the protein. A positive reaction indicates exposure to the TB bacteria. Chest X-rays are used to detect abnormalities in the lungs caused by TB but are not confirmatory. Sputum culture is used to identify the presence of TB bacteria in the sputum. MRIs are not typically used as a primary diagnostic tool for TB.

Correct Answer: A

Rationale: The correct answer is A: Hypokalemia. Patients on diuretics are at risk of developing hypokalemia due to increased potassium excretion by the kidneys. Hypokalemia can lead to serious consequences such as cardiac arrhythmias. Hyponatremia (choice B) is an imbalance of sodium levels and is not typically associated with diuretic use. Hyperkalemia (choice C) is the opposite condition where potassium levels are elevated and is less common in patients on diuretics. Hypercalcemia (choice D) is an excess of calcium in the blood and is not directly related to diuretic use. Therefore, monitoring for hypokalemia is crucial in patients taking diuretics.

Correct Answer: A

Rationale: The best nursing intervention for a patient experiencing fluid overload is to administer diuretics. Diuretics help the body to remove excess fluid by increasing urine output. This intervention is crucial in managing fluid overload. Administering IV fluids (Choice B) would worsen the condition by adding more fluids to the already overloaded system. Providing oral fluids (Choice C) is not appropriate as it would further contribute to the fluid overload. Chest physiotherapy (Choice D) is not indicated in the treatment of fluid overload and would not address the underlying issue of excess fluid accumulation.

Correct Answer: A

Rationale: Administering prescribed analgesics is a crucial aspect of managing chronic pain effectively. Analgesics help alleviate pain symptoms and improve the patient's quality of life. While physical activity and non-pharmacological interventions can also play a role in pain management, the immediate need for relief in chronic pain often requires pharmacological intervention. Encouraging deep breathing exercises may provide some relief in certain situations, but it may not be as effective as analgesics for managing chronic pain.

Correct Answer: A

Rationale: Administering oxygen is crucial for a patient presenting with confusion after surgery because it helps alleviate potential hypoxia, which can be a common cause of confusion in the postoperative period. While repositioning the patient, administering IV fluids, and performing a neurological assessment are important nursing interventions in certain situations, addressing hypoxia by administering oxygen takes priority in this case to ensure an adequate oxygen supply to the brain and other vital organs.

Correct Answer: D

Rationale: The correct answer is D: 'Avoid taking aspirin while using this medication.' Enoxaparin is an anticoagulant medication, and taking aspirin concurrently can increase the risk of bleeding. Choices A, B, and C are incorrect. A nurse should not instruct the client to rub the injection site after administration as it may cause irritation. Pinching the skin while administering the injection is not recommended for enoxaparin injections. Aspirating before administering the medication is also unnecessary as enoxaparin is administered subcutaneously, not intramuscularly.

Correct Answer: B

Rationale: Redness and warmth in the calf can indicate a deep vein thrombosis (DVT), which is a serious complication following hip replacement surgery. It is crucial to report this finding promptly for further evaluation and intervention. The other options, heart rates of 88/min and 96/min, are within normal limits for an adult and may not require immediate reporting. A urine output of 30 mL/hr is concerning for decreased kidney perfusion, but the priority in this case is the potential DVT due to its severe implications.

Correct Answer: A

Rationale: The priority nursing action for a patient with respiratory distress is to administer oxygen. Oxygen therapy is crucial in improving oxygenation levels and relieving respiratory distress, making it the top priority intervention. Repositioning the patient, administering bronchodilators, or providing chest physiotherapy may be necessary interventions depending on the underlying cause, but ensuring adequate oxygen supply should take precedence in addressing respiratory distress.

Correct Answer: A

Rationale: The correct answer is A: Check the central line site daily. Monitoring the central line site daily is crucial in detecting early signs of infection, such as redness, swelling, tenderness, or drainage. By checking the site regularly, healthcare providers can take prompt action to prevent complications. Choice B, monitoring the patient's vital signs, while important in assessing overall health, may not specifically indicate an infection related to the central line. Choice C, checking the central line dressing every other day, may not be frequent enough to catch early signs of infection. Choice D, checking for signs of sepsis, is important but represents a more severe stage of infection and may occur after local signs at the central line site have already manifested.