A client is scheduled for a percutaneous transluminal coronary angioplasty (PTCA). The nurse knows that a PTCA is

Correct Answer: C

Rationale: Percutaneous transluminal coronary angioplasty (PTCA) is a procedure that involves compressing plaque against the wall of a diseased coronary artery to improve blood flow. It is a minimally invasive procedure performed during a cardiac catheterization to open blockages in the coronary arteries. Surgical repair of a diseased coronary artery refers to procedures like coronary artery bypass grafting (CABG), not PTCA. Placement of an automatic internal cardiac defibrillator is a different intervention used for managing cardiac arrhythmias, not for improving coronary blood flow. A non-invasive radiographic examination of the heart would typically refer to procedures like a cardiac CT scan or an MRI, not PTCA.

Correct Answer: C

Rationale: The correct answer is that nonsteroidal anti-inflammatory drugs are the first choice in treatment for juvenile idiopathic arthritis (formerly known as juvenile rheumatoid arthritis). NSAIDs are important as a first-line treatment and typically require 3-4 weeks for the therapeutic anti-inflammatory effects to be realized. Choice A is incorrect as early treatment can improve outcomes and prevent joint deformities. Choice B is incorrect as juvenile idiopathic arthritis does not necessarily progress to adult rheumatoid arthritis. Choice D is incorrect as physical activity should be encouraged in children with arthritis to maintain joint mobility and overall health.

Correct Answer: A

Rationale: The correct answer is 'The patient is alert and oriented.' In a patient with advanced cirrhosis, lactulose is used to lower ammonia levels and prevent encephalopathy. A patient being alert and oriented indicates that the medication is effective in achieving this goal. While lactulose may help with constipation, the primary purpose in cirrhosis is to reduce ammonia levels, not to address constipation directly. Denying nausea or anorexia is not a specific indicator of lactulose's effectiveness in treating cirrhosis. Bilirubin levels decreasing are not directly related to lactulose's therapeutic effect on cirrhosis.

Correct Answer: A

Rationale: In acute severe pancreatitis, there is a risk of respiratory failure as a complication, making the maintenance of normal respiratory function the priority outcome. This patient may develop respiratory issues due to the inflammatory process affecting the diaphragm. While pain control, absence of ongoing pancreatic disease, and fluid/electrolyte balance are crucial, they are secondary to ensuring adequate oxygenation and ventilation to prevent respiratory compromise.

Correct Answer: A

Rationale: The priority nursing diagnosis for a patient experiencing a migraine headache is 'Acute pain related to biologic and chemical factors.' Migraine headaches are characterized by severe throbbing pain, often accompanied by sensitivity to light and sound. Addressing the acute pain is crucial to improve the patient's comfort and quality of life. Choices B, C, and D are not the priority nursing diagnoses for a patient with a migraine headache. Anxiety, hopelessness, and risk for side effects may not be as urgent as managing the acute pain associated with a migraine.

Correct Answer: D

Rationale: The critical lab result that should be reported to the physician immediately in this case is the potassium level of 2.7 mEq/L. A potassium imbalance, especially in a patient with a history of dysrhythmia like atrial fibrillation, can be life-threatening and lead to cardiac distress. Low potassium levels (hypokalemia) can predispose the patient to dangerous arrhythmias, including worsening atrial fibrillation. Hemoglobin of 11 g/dl, platelet count of 150,000, and an INR of 2.5 are within acceptable ranges and not as immediately concerning as a low potassium level in this clinical context.

Correct Answer: C

Rationale: The correct answer is: 'The medication will prevent irritation of the enlarged veins.' Esophageal varices are dilated submucosal veins. The therapeutic action of H2-receptor blockers in patients with esophageal varices is to prevent irritation and bleeding from the varices caused by reflux of acidic gastric contents. While ranitidine can decrease the risk of peptic ulcers, reduce nausea, and help prevent aspiration pneumonia, the primary purpose of H2-receptor blockade in this patient is to prevent irritation and bleeding from the varices, not the other listed effects.

Correct Answer: B

Rationale: The highest priority outcome is to maintain adequate nutrition because it is essential for hepatocyte regeneration. In viral hepatitis, the liver is affected, and proper nutrition supports the liver's function and regeneration. While increasing activity level and establishing a stable environment are important, they are not as urgent as ensuring the patient receives proper nutrition. Identifying sources of hepatitis exposure can help prevent future infections, but in the acute phase, the immediate focus should be on providing adequate nutrition to support the patient's recovery.

Correct Answer: A

Rationale: In developmental dysplasia of the hip (DDH), one of the key findings is unequal leg length. This occurs due to the dislocation of the hip joint, where the ball is loose in the socket. Limited adduction, the inability to bring the hip and knee towards the midline of the body, is also a common finding in DDH. Diminished femoral pulses are not typically associated with DDH, as it primarily affects the skeletal structure rather than vascular supply. Symmetrical gluteal folds are normal in infants and do not indicate DDH, as asymmetry in gluteal folds can be a sign of hip dislocation.