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Discourage walking in order to limit pain: Physical inactivity promotes further vascular stasis and muscle atrophy in the lower extremities. While claudication causes discomfort, complete avoidance of movement prevents the development of collateral circulation. Reduced mobility exacerbates the underlying pathology of arterial insufficiency and impairs long-term functional outcomes.

Encourage extended periods of sitting or standing: Prolonged static positioning increases hydrostatic pressure and can worsen peripheral tissue perfusion. Dependency or stasis does not facilitate the arterial inflow required to oxygenate ischemic tissues. Frequent position changes are necessary to prevent localized pressure and maintain adequate circulatory flow.

Elevate his legs and arms above his heart when resting: This position hinders gravity-assisted arterial flow to the distal extremities, worsening ischemia. Unlike venous insufficiency, arterial disease requires the limbs to be maintained in a neutral or slightly dependent position. Elevation significantly reduces the perfusion pressure needed to reach peripheral tissues.

Have the client chew two aspirin 325 mg each, administer oxygen and bring the crash cart to the bedside: While aspirin is indicated for its antiplatelet effects, a dose of 650 mg exceeds the standard loading dose of 162 to 325 mg. Administering excessive aspirin increases the risk of gastrointestinal hemorrhage without providing additional cardiac benefit. The crash cart is necessary but secondary to immediate pharmacological stabilization.

Administer oxygen, give a dose of nitroglycerin sublingual, and follow with a nonsteroidal anti-inflammatory: Nonsteroidal anti-inflammatory drugs, excluding aspirin, are contraindicated in acute myocardial infarction because they increase the risk of myocardial rupture and mortality. Nitroglycerin helps with vasodilation, but the addition of an NSAID is harmful. This combination fails to provide the necessary sedation and potent analgesia required.

Begin a heparin drip, administer oxygen, and call the lab for stat troponin levels: Heparin and troponin levels are essential components of NSTEMI management but do not address the client's immediate, unrelieved pain. Anticoagulation prevents further thrombus formation but does not actively reduce the current ischemic workload. Immediate nursing priorities must focus on symptomatic relief and cardiac workload reduction.

Myocardial infarction: While this patient has significant cardiovascular risk factors, the clinical presentation does not describe acute substernal chest pain or EKG changes. The presence of 4+ peripheral edema and jugular venous distention points toward a chronic congestive process rather than acute coronary occlusion. Weight gain and exhaustion are symptoms of volume overload.

Left-sided heart failure: Left-sided failure typically presents with pulmonary congestion, characterized by crackles, orthopnea, and paroxysmal nocturnal dyspnea. While it often precedes right-sided failure, the specific findings of jugular distention and lower extremity edema are hallmarks of systemic venous congestion. This choice does not align with the predominant systemic symptoms described.

Acute pericarditis: Pericarditis usually presents with sharp, pleuritic chest pain that improves when leaning forward, often accompanied by a pericardial friction rub. It does not typically cause massive peripheral edema or rapid weight gain unless it progresses to cardiac tamponade. The clinical signs in the stem indicate high systemic venous pressure.

Give 2 rescue breaths: In cardiac arrest due to V.Fib, the priority is circulation. High-quality chest compressions are initiated immediately to maintain perfusion until defibrillation can be performed. Rescue breaths are not the first step.

Start chest compressions: V.Fib is a lethal rhythm with no effective cardiac output. Immediate chest compressions are essential to circulate oxygenated blood to vital organs while preparing for defibrillation. This is the first action in Basic Life Support (BLS) and Advanced Cardiac Life Support (ACLS).

Call a code blue/call 911: This is necessary, but it comes after starting chest compressions. The priority is to begin CPR without delay, then activate emergency response and prepare for defibrillation.

"You should take these medications first thing in the morning on an empty stomach.": Administering statins in the morning reduces their efficacy because the peak plasma concentration occurs when cholesterol synthesis is at its lowest. Unlike some medications, simvastatin does not require an empty stomach for absorption. Morning dosing is generally avoided for statins with shorter half-lives.

"You should take this medication in the morning with your breakfast to prevent upset stomach.": While taking medication with food can reduce gastric irritation, the morning timing is pharmacologically suboptimal for simvastatin. Standard nursing practice emphasizes evening administration to maximize the inhibition of the cholesterol-producing enzyme. This instruction would decrease the overall therapeutic benefit.

"You should take this medication with your mid-day meal with food.": Mid-day dosing does not align with the circadian rhythm of hepatic cholesterol synthesis. For maximal lipid-lowering effects, the medication must be present during the nocturnal hours. Afternoon administration is not the standard of care for short-acting statin therapy.

Insert a 20-gauge peripheral IV catheter: Establishing venous access is necessary for administering intravenous diuretics but is not the most immediate action. Assessment of the clinical status must precede invasive interventions to determine the severity of the fluid overload. The nurse should prioritize gathering objective data on respiratory compromise before performing venipuncture.

Administer oxygen at 2 liters per minute via nasal cannula: The current oxygen saturation is 94% on room air, which is generally considered acceptable for many patients. While supplemental oxygen may be indicated later, it is not the most critical first step given these stable saturation levels. Respiratory assessment should guide the necessity and titration of oxygen therapy.

Place the client on a cardiac monitor: Continuous cardiac monitoring is important for detecting arrhythmias associated with heart failure or electrolyte shifts. However, it does not provide immediate information regarding the patient's primary risk of pulmonary congestion or respiratory distress. Monitoring is an adjunctive task rather than the primary diagnostic priority.