Nursing care
Venous Insufficiency nursing care: what to assess and what to do first
Written and reviewed by Dana Whitfield, RN, MSN · 5 min read · Updated September 2026
Short answer
Venous insufficiency nursing care centres on compression therapy, leg elevation and skin protection. The chronic sign is brown haemosiderin staining around the ankle, caused by red cell breakdown in tissue after years of venous hypertension. Compression bandaging or stockings remain the primary treatment unless arterial disease is confirmed absent first.
The pathophysiology in one pass
Venous insufficiency begins with valve failure in the deep or superficial leg veins. Once a valve stops closing properly, blood refluxes backward instead of moving up toward the heart with each calf muscle contraction. Pressure in the venous system rises, particularly at the ankle, where gravity and distance from the heart do the most damage.
Sustained venous hypertension pushes fluid and red blood cells out through the capillary walls into the surrounding tissue. Red cells breaking down there release haemosiderin, an iron-containing pigment, which stains the skin a brown or bronze colour that does not fade. This staining is permanent tissue change, not bruising, and it marks disease that has been present for years rather than weeks. The same pressure drives the oedema, the fibrosis, and eventually the venous ulcer that forms over the medial malleolus in advanced cases.
Assessment findings that matter
Look at the lower leg with the patient standing if possible, then supine. Brown haemosiderin staining around the ankle is the single most useful chronic sign on inspection, and it should immediately raise suspicion of long-standing venous disease rather than an acute process. Pair it with pitting oedema that worsens through the day and improves overnight or with elevation.
Palpate for warmth, not coolness — venous limbs are typically warm, which distinguishes them from the cool, pale limb of arterial insufficiency. Check pulses; they should be present and full in pure venous disease. Note skin texture: venous dermatitis produces dry, scaly, sometimes weeping skin above the malleoli, and long-term cases develop lipodermatosclerosis, a hardened, woody induration of the lower calf. Document any ulcer location, size and drainage, since venous ulcers characteristically sit over the medial malleolus and have irregular, shallow edges.
What the exam asks about this
NCLEX items on venous insufficiency usually test whether the candidate can tell it apart from arterial insufficiency, because the nursing actions are opposite. Expect a scenario describing warm skin, brown staining, pitting oedema and a medial ankle ulcer, then a question asking for the priority intervention — the correct answer is almost always elevation and compression, not warmth or dangling the leg.
You will also see questions on contraindications to compression. The exam expects you to know that compression therapy is unsafe in significant arterial disease, so questions often embed an ankle-brachial index value or absent pedal pulses as a distractor clue. Another recurring theme is patient teaching: selecting the correct answer that promotes activity and leg elevation over prolonged standing or sitting, since immobility worsens venous return.
Nursing interventions in priority order
Confirm arterial supply is adequate before applying any compression; check for palpable pulses or review a documented ankle-brachial index. Compression is the treatment for venous insufficiency, but applying it to a limb with significant arterial disease can cause tissue ischaemia. Once arterial disease is excluded or ruled unlikely, apply compression bandaging or graduated compression stockings as prescribed, matching the compression class to the severity of disease.
Elevate the legs above heart level for periods through the day and encourage ambulation, since calf muscle contraction is what actually drives venous return upward. Provide skin care for any dermatitis or ulceration: gentle cleansing, moisture-appropriate dressings, and avoidance of adhesive tape directly on fragile skin. Encourage weight management and avoidance of prolonged standing or sitting, and reposition seated patients to avoid dependent oedema.
Medications and monitoring
Diuretics have limited value here and are not first-line, since the oedema is due to venous pooling rather than fluid overload; using them without addressing the underlying reflux risks dehydration without improving the leg. Topical corticosteroids may be prescribed short-term for venous stasis dermatitis to reduce inflammation and itching, but prolonged use thins already fragile skin.
For active venous ulcers, monitor for signs of infection at the wound bed and surrounding skin, and track wound measurements at each dressing change to confirm the ulcer is progressing toward closure under compression. If a patient is on an anticoagulant for a related deep vein thrombosis history, monitor coagulation studies per protocol. Report any new pain, spreading erythema, or failure of the ulcer to reduce in size over several weeks of compression.
When to escalate
Escalate immediately if a limb that was warm becomes cool, pale or newly pulseless — that shift suggests superimposed arterial compromise and compression must stop. Sudden unilateral leg swelling with calf tenderness or warmth in a previously stable patient warrants urgent evaluation for deep vein thrombosis rather than assumption that it is simple worsening of chronic insufficiency.
Notify the provider for an ulcer that develops increasing pain, purulent drainage, surrounding cellulitis, or fever, since these point to infection requiring culture and possible systemic antibiotics. Also escalate when an ulcer shows no measurable improvement after four to six weeks of correctly applied compression therapy, as this may indicate the need for advanced wound care or vascular referral.
The next step on this is the same as on everything else here: answer questions and read the rationales. Our cardiovascular practice questions are the closest set to what this page covers.
Common questions
Can you use compression stockings if the patient also has peripheral artery disease?
Not without caution. Compression is contraindicated or requires modified, lower-pressure garments when arterial disease is significant, because compressing an already poorly perfused limb can worsen ischaemia. An ankle-brachial index should be checked before starting compression in any patient with risk factors for arterial disease.
Why does venous insufficiency cause brown skin discoloration but arterial disease does not?
The brown staining comes from haemosiderin deposited when red blood cells leak out of high-pressure veins into surrounding tissue and break down. Arterial disease causes reduced blood flow rather than venous hypertension, so it produces pallor and coolness instead, not pigment deposition.
How high should the legs be elevated for venous insufficiency?
Elevate the legs above the level of the heart, generally 15 to 20 centimetres above the mattress when lying down, for periods through the day rather than only at night. This uses gravity to assist venous return and reduce dependent oedema.
Is a venous ulcer painful?
Venous ulcers typically cause aching or heaviness rather than the severe, constant pain seen with arterial ulcers. Pain that increases sharply or is disproportionate to the wound appearance should prompt reassessment for infection or an arterial component.
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