Hantavirus Pulmonary Syndrome Blood Test

What is Hantavirus Pulmonary Syndrome?

Hantavirus Pulmonary Syndrome is a rare but severe respiratory disease that can progress to life-threatening lung failure. It is caused by hantavirus infection transmitted through inhalation of airborne particles from infected rodent droppings, urine, or saliva, particularly from deer mice in North America. The Respiratory Allergy Profile is the most important test for distinguishing allergic reactions to rodent proteins from viral hantavirus infection, as both involve similar environmental exposures.

RECOMMENDED TEST Respiratory Allergy Profile Region XVII: CA (northwest), OR (west), WA (west)
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What causes Hantavirus Pulmonary Syndrome?

Hantavirus Pulmonary Syndrome is caused by hantavirus infection, primarily transmitted when you breathe in air contaminated with the virus from rodent droppings, urine, or saliva. The Sin Nombre virus, carried by deer mice, is the most common cause in the United States. Infection typically occurs when cleaning barns, sheds, or other enclosed spaces where rodents have been active, or when disturbing rodent nests. Direct contact with rodents or their waste can also transmit the virus, though this is less common than airborne transmission.

What is the best test for Hantavirus Pulmonary Syndrome?

The Respiratory Allergy Profile Region XVII is the most important blood test for people with suspected hantavirus exposure because it helps differentiate between allergic reactions to rodent proteins and actual viral infection. This comprehensive panel detects immune responses to mouse urine proteins and other environmental allergens common in rodent-infested areas. While hantavirus infection itself requires specialized viral antibody testing and clinical evaluation at medical facilities, this allergy profile provides critical information about whether your respiratory symptoms might be related to allergic responses rather than viral infection. This distinction is essential because both conditions involve similar environmental exposures but require completely different treatment approaches.

When should I get tested for Hantavirus Pulmonary Syndrome?

You should get tested if you develop fever, muscle aches, and shortness of breath within 1-8 weeks after exposure to rodents or their droppings, especially in rural or wilderness areas. Get immediate medical attention if you experience difficulty breathing, cough, or chest tightness after cleaning spaces where rodents have been active. Early symptoms can resemble the flu but rapidly progress to severe respiratory distress. If you work in environments with rodent exposure like barns, warehouses, or vacation cabins, testing becomes especially important when respiratory symptoms develop.

What are the symptoms of Hantavirus Pulmonary Syndrome?
Hantavirus Pulmonary Syndrome begins with fever, severe muscle aches (especially in large muscle groups like thighs, back, and shoulders), fatigue, dizziness, chills, and sometimes nausea, vomiting, diarrhea, and abdominal pain. Within 4-10 days, respiratory symptoms suddenly appear including severe shortness of breath, dry cough, and rapid breathing as fluid accumulates in the lungs. The disease progresses rapidly once breathing difficulties begin, with oxygen levels dropping dangerously low. Unlike common respiratory infections, HPS does not typically cause runny nose, sore throat, or rash in its early stages.
Who is at risk for Hantavirus Pulmonary Syndrome?
People who live, work, or recreate in rural areas where rodents are present face the highest risk, particularly in the western United States. Occupations with increased risk include farmers, ranchers, pest control workers, utility workers, construction workers, and anyone cleaning buildings that have been closed for extended periods. Campers, hikers, and people opening vacation cabins are also at elevated risk. Activities that disturb rodent nests or droppings such as sweeping, vacuuming without proper precautions, or stirring up dust in rodent-infested areas significantly increase exposure risk.
What happens if Hantavirus Pulmonary Syndrome is left untreated?
Untreated Hantavirus Pulmonary Syndrome progresses rapidly to severe respiratory failure with a mortality rate exceeding 35 percent. Within hours of respiratory symptoms appearing, the lungs fill with fluid, oxygen levels plummet, and blood pressure drops dangerously. Patients require immediate intensive care, often with mechanical ventilation and oxygen support. The heart and kidneys can fail as the body goes into shock. Even with aggressive medical treatment in an ICU setting, survivors may face long-term lung damage and reduced respiratory function. Early recognition and immediate hospitalization are critical for survival.
Can Hantavirus Pulmonary Syndrome be diagnosed with a blood test?
Hantavirus Pulmonary Syndrome can be diagnosed through specialized blood tests that detect antibodies against hantavirus, but these require specific laboratory capabilities and are typically performed at reference labs or public health facilities. Standard blood work shows abnormal findings like elevated white blood cells, low platelet counts, and increased lactate levels that support the diagnosis. The Respiratory Allergy Profile helps rule out allergic reactions to rodent proteins that might mimic early HPS symptoms. Diagnosis usually combines blood antibody testing, clinical symptoms, chest X-rays showing fluid in the lungs, and confirmed rodent exposure history.
How is Hantavirus Pulmonary Syndrome treated?
Hantavirus Pulmonary Syndrome requires immediate hospitalization in an intensive care unit with supportive care focused on maintaining oxygen levels and blood pressure. Treatment includes mechanical ventilation to support breathing as the lungs fill with fluid, supplemental oxygen, and careful fluid management to prevent further lung complications. Patients may need vasopressor medications to maintain blood pressure and advanced life support measures like extracorporeal membrane oxygenation (ECMO) in severe cases. There is no specific antiviral medication proven effective against hantavirus, so treatment focuses on supporting vital organ function until the immune system clears the infection. Early hospitalization before severe respiratory symptoms develop significantly improves survival rates.
How can I prevent Hantavirus Pulmonary Syndrome?
Prevention focuses on avoiding contact with rodents and their droppings through proper rodent control and safe cleanup practices. Seal holes and gaps in your home, store food in rodent-proof containers, keep grass cut short around buildings, and eliminate potential nesting sites. When cleaning areas with rodent activity, ventilate the space for 30 minutes first, wear rubber gloves and a properly fitted N95 respirator, and wet down droppings with disinfectant before cleaning to avoid stirring up dust. Never vacuum or sweep rodent droppings dry. When camping, avoid areas with visible rodent droppings and do not disturb burrows or nests.
What natural remedies help with Hantavirus Pulmonary Syndrome?
Hantavirus Pulmonary Syndrome is a medical emergency requiring immediate professional treatment, and natural remedies cannot treat or cure this life-threatening infection. However, after recovery and with medical clearance, supporting lung health through proper nutrition including foods rich in antioxidants like berries, leafy greens, and omega-3 fatty acids may aid healing. Gentle breathing exercises as recommended by healthcare providers can help restore lung function. Adequate rest, hydration, and avoiding respiratory irritants like smoke are important during recovery. Always consult your healthcare provider before using any supplements or home remedies, as HPS complications require ongoing medical monitoring even after initial recovery.
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Demo results
Immunoglobulin E (Total IgE) 285 IU/mL
Demo results
Normal < 150 Elevated ≄ 150
285 IU/mL

What this means

Your total IgE level is elevated, which indicates your immune system is producing higher amounts of allergy antibodies. This is common in people with environmental allergies and suggests you're sensitized to one or more allergens tested in this panel. Elevated IgE supports that your respiratory symptoms are allergy-related rather than other causes.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More complex tests, such as hormone panels, may take up to 10–15 business days due to their complexity.

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* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More complex tests, such as hormone panels, may take up to 10–15 business days due to their complexity.

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Respiratory Allergy Profile Region XVII: CA (northwest), OR (west), WA (west)
What's included
Fast & easy, results by email & SMS
No need to visit a doctor
Private & confidential
No insurance needed
Results explained
No extra fees paid at the lab

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