Nursing care
Pulmonary Hypertension 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
Pulmonary hypertension is sustained high pressure in the pulmonary arteries that forces the right ventricle to work against increasing resistance. Because the right heart fails first, the findings a nurse sees are peripheral rather than pulmonary: jugular venous distension, hepatomegaly, ascites, and dependent oedema, alongside exertional dyspnoea and fatigue.
The pathophysiology in one pass
Pulmonary hypertension is defined by elevated pressure in the pulmonary arteries, arising from narrowing or remodelling of the pulmonary vasculature, chronic hypoxia, left heart disease, chronic thromboembolic disease, or a primary idiopathic process. Whatever the trigger, the right ventricle is the chamber that pays the price, because it is thin-walled and built for a low-pressure circuit, not for pumping against sustained resistance.
Over time the right ventricle hypertrophies and then dilates as it fails to compensate, a process that culminates in cor pulmonale, right-sided heart failure caused specifically by lung or pulmonary vascular disease. This is the detail that reframes the whole assessment: pulmonary hypertension is a disease of the pulmonary vasculature, but the clinical picture a nurse sees at the bedside is the downstream story of a failing right ventricle, not primarily a lung picture.
Assessment findings that matter
Right heart failure is the consequence, so the assessment findings are peripheral rather than pulmonary. Look for jugular venous distension, hepatomegaly with right upper quadrant tenderness, ascites, and pitting oedema in the lower extremities, all signs of systemic venous congestion backing up behind a failing right ventricle. Weigh the patient daily, since fluid retention shows up on the scale before it shows up as visible swelling.
Exertional dyspnoea is usually the earliest and most persistent symptom, often present long before the diagnosis is made, and it progresses to dyspnoea at rest as disease advances. Fatigue, syncope or near-syncope on exertion, and chest pain can all occur, syncope in particular reflects the right ventricle's inability to increase output to match demand and is a marker of more advanced disease. A loud or split S2 and a right ventricular heave may be present on auscultation and palpation, and clubbing suggests an underlying chronic hypoxic process.
What the exam asks about this
Expect questions that test whether you recognise right-sided rather than left-sided failure findings, this is the most commonly tested distinction, and a question describing jugular venous distension, hepatomegaly, and peripheral oedema in a patient with known lung or cardiac disease is pointing at right heart failure secondary to pulmonary hypertension, not pulmonary oedema. Questions may also test priority interventions, oxygen administration to reduce hypoxic vasoconstriction, and safe use of pulmonary vasodilators.
Watch for items testing medication safety, particularly the teratogenicity and administration route of specific pulmonary vasodilator classes, and items testing activity tolerance and energy conservation teaching, since overexertion in advanced disease can precipitate syncope or acute decompensation.
Nursing interventions in priority order
Administer supplemental oxygen as ordered to reduce hypoxic pulmonary vasoconstriction, which otherwise worsens pulmonary pressures further. Monitor oxygen saturation continuously in acutely ill patients and titrate to the ordered target rather than allowing either hypoxia or unnecessary hyperoxia.
Pace activity deliberately, encouraging rest periods between tasks and teaching energy conservation, since exertion that outpaces right ventricular reserve can trigger syncope. Monitor daily weight, intake and output, and peripheral oedema to track fluid status, and administer diuretics as ordered while watching for the electrolyte disturbances that accompany them. Position the patient to optimise breathing, semi-Fowler's or high Fowler's is generally best tolerated, and avoid the Valsalva manoeuvre and other manoeuvres that acutely raise intrathoracic pressure.
Medications and monitoring
Pulmonary vasodilators are the disease-specific therapy: endothelin receptor antagonists such as bosentan and ambrisentan, phosphodiesterase-5 inhibitors such as sildenafil and tadalafil, and prostacyclin analogues such as epoprostenol and treprostinil, delivered orally, inhaled, or by continuous IV or subcutaneous infusion depending on the agent and disease severity. Endothelin receptor antagonists are teratogenic and hepatotoxic, so pregnancy testing, reliable contraception, and monitoring of liver function are required throughout treatment.
Continuous IV prostacyclin infusions are never stopped abruptly, since abrupt discontinuation can cause rebound pulmonary hypertension and rapid clinical deterioration; teach patients on home infusions meticulous catheter care and what to do if the pump fails. Diuretics manage volume overload from right heart failure, and anticoagulation may be used in select patients with chronic thromboembolic disease. Avoid phosphodiesterase-5 inhibitors in combination with nitrates because of the risk of profound hypotension.
When to escalate
Escalate immediately for new or worsening syncope, chest pain, or a significant drop in oxygen saturation, all of which can signal acute right ventricular decompensation. A sudden increase in dyspnoea combined with hypotension is particularly concerning, since it suggests the right ventricle can no longer generate adequate output, a state that can progress rapidly to cardiogenic shock.
Report a rapid rise in daily weight, worsening peripheral oedema, or new ascites, since these indicate the current diuretic and fluid management plan is no longer adequate. Any interruption to a continuous IV prostacyclin infusion is an emergency requiring immediate notification, given the risk of rebound crisis, and any signs of catheter-related infection in a patient on home infusion therapy warrant prompt escalation as well.
The next step on this is the same as on everything else here: answer questions and read the rationales. Our respiratory practice questions are the closest set to what this page covers.
Common questions
Why does pulmonary hypertension cause peripheral oedema?
Because sustained high pressure in the pulmonary arteries eventually causes the right ventricle to fail. A failing right ventricle cannot move venous blood forward efficiently, so pressure backs up into the systemic venous system, producing jugular venous distension, hepatomegaly, and dependent oedema rather than pulmonary symptoms.
What is the priority nursing assessment in pulmonary hypertension?
Signs of right heart failure and decompensation: jugular venous distension, hepatomegaly, peripheral oedema, daily weight trends, oxygen saturation, and exertional symptoms such as syncope or worsening dyspnoea. These track disease progression more reliably than pulmonary findings alone.
Can pulmonary vasodilators be stopped abruptly?
No, particularly not continuous IV prostacyclin infusions such as epoprostenol, which carry a serious risk of rebound pulmonary hypertension and rapid clinical deterioration if interrupted. Patients on home infusions need explicit teaching on pump troubleshooting and backup medication access.
Why are endothelin receptor antagonists a safety concern?
Drugs such as bosentan and ambrisentan are teratogenic and hepatotoxic. Nurses need to confirm pregnancy testing and reliable contraception in patients of childbearing potential and monitor liver function throughout treatment.
Is syncope significant in a patient with pulmonary hypertension?
Yes, syncope or near-syncope on exertion indicates the right ventricle cannot increase output to meet demand and is a marker of more advanced disease. New or worsening syncope should be escalated promptly rather than treated as incidental.