Intermittent claudication is a sign of:

ESIC Nursing Officer -2019 (Shift -1)

Medical & Surgical Nursing

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Appeared in: ESIC Nursing Officer -2019 (Shift -1)

Explanation

Intermittent claudication is the hallmark symptom of peripheral arterial occlusive disease (PAD).
It is defined as ischemic muscle pain, aching, or cramping in the extremities that occurs with exercise and is relieved by rest.
The pain results from inadequate blood supply (ischemia) to the muscles during increased demand, caused by atherosclerotic narrowing or blockage of the arteries.
The pain typically occurs in muscle groups distal to the arterial stenosis or occlusion.

Option A: Nerve injury causes neuropathic pain, which is typically described as burning, tingling, or numbness, rather than the cramping, aching muscle pain of claudication. Neuropathic pain is not consistently relieved by rest.
Option B: Peripheral neuropathy is damage to peripheral nerves, often caused by diabetes. It leads to symptoms like numbness, tingling, and burning pain (neuropathic pain), especially in the feet and hands, which is distinct from the exercise-induced muscle ischemia of claudication.
Option C: Myocardial infarction (heart attack) is caused by ischemia of the heart muscle, not the leg muscles. Its classic symptom is chest pain (angina), which may radiate to the jaw, shoulder, or arm.

Visual 1: Diagram - An illustration showing an artery in the leg narrowed by atherosclerotic plaque. This helps visualize the underlying cause of reduced blood flow in arterial occlusive disease.
Visual 2: Flowchart - A flowchart demonstrating the pathophysiology: Exercise → Increased muscle O₂ demand → Insufficient blood flow through stenosed artery → Muscle ischemia → Lactic acid buildup → Pain (Claudication) → Rest → Decreased O₂ demand → Pain relief.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pathophysiology of Intermittent Claudication as background academic context rather than a clinical decision trigger.
A nurse's primary role includes assessing for signs of PAD by checking peripheral pulses (e.g., dorsalis pedis, posterior tibial), skin temperature, color, and capillary refill in the lower extremities.
Patient education is critical. Nurses should instruct patients on risk factor modification, including smoking cessation (nicotine is a potent vasoconstrictor), managing diabetes and hypertension, and following a structured walking program to improve collateral circulation.
What if? If the patient reports similar leg pain that now occurs even at rest, especially at night when lying flat, this is a sign of critical limb ischemia. This is a medical emergency requiring immediate referral for intervention to prevent tissue loss and amputation.

How to Approach the Question

First, define the key term in the question: 'Intermittent claudication'. Recall that 'intermittent' means it comes and goes, and 'claudication' relates to limping or pain.
Connect the term to its classic definition: pain, cramping, or fatigue in the muscles (usually legs) during exercise, which is relieved by rest.
Analyze the underlying physiology. This pattern of pain points to a problem with blood supply not meeting demand during exertion, which is a hallmark of vascular occlusion.
Evaluate the options based on this physiological understanding.
Eliminate 'Nerve injury' and 'Peripheral neuropathy' as they cause neuropathic pain (burning, tingling, numbness), not ischemic muscle pain.
Eliminate 'Myocardial infarction' as this involves the heart muscle and causes chest pain (angina), not leg pain.

Concept Tested & Keywords

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