Case#8 n early summer, a previously healthy 42-year-old man was admitted to his
ID: 3164945 • Letter: C
Question
Case#8 n early summer, a previously healthy 42-year-old man was admitted to his local hospital with a history of fever, muscle aches and malaise. For two days before the admission, he noted in the 3 weeks before becoming unwell, the patient had been stationed at a rural campsite in Physical exam noted that the patien 1-week shortness of breath, and on the day of admission he felt extremely weak. New Mexico. He had reported that in and around his tent, there had been many deer mice, although he had not been bitten. t appeared ill and crackles were heard on lung examination. In addition the following vital signs were recorded: temperature 38.0 .?, pulse 124/min, blood pressure 76/40 mmHg. Laboratory data revealed a white blood cell count of 22,000/ul bands, 16% lymphocytes and 80,000/ul platelets. His blood gases were pCO, 22 mmHg and po, 40 mmHg. hilar indistinctness (Figure 1) with 54% PMNs, 22% All serum chemistries were normal. A chest x-ray revealed bilateral interstitial infiltrates with Following admission to the hospital, the patient became progressively hypoxemic. He was treated with intravenous erythromycin and ceftriaxone Nevertheless, he developed progressive respiratory failure, necessitating mechanical ventilation. His condition steadily worsened for his first 10 days in the hospital. On the 12th day of hospitalization, an open- lung biopsy was performed, but tests did not show acid-fast bacilli, fungi or bacteria. At that point, serology was performed by enzyme immunoassay for a virus, which was diagnostic. 1. This patient was thought to have become ill as a result of his exposure to rodent excreta or to rodents. In the United States, what bacterial infections may cause pulmonary infections and can be the result of this type of exposure? Given that the patient had a viral cause of respiratory failure, what virus was most likely to be responsible for his illness? What type of virus is this? Historically, in what setting was the virus first detected? 2. Was his clinical course consistent with the organism infecting him? Explain. 3. 4. 5. Geographically within the United States, where are human infections from this virus typically found? Viruses in this genus typically cause pulmonary involvement in human cases in North and South America. The viruses in this genus were first identified as human pathogens in Korea and infect people in both Europe and Asia. What are the most common types of clinical involvement in patients who have become ill by viruses within this genus in Europe and Asia?Explanation / Answer
hypoxemia is a condition of low level oxygen in blood. it is deficiency of oxygen in arterial blood. so this can cause the muscle pain weakness in body. hantavirus pulmonary syndrome is caused due to the deer mice which is a virall disease these are the arthropod borne viruses. it can also become airborne or aerolized in tiny particles. the virus is diagnosed by the symptms and signs shown and no chronc infection is seen in humans.
the treatment for it is supply of more oxygen to the body and if they are recognized early with intense care it can be cured easily.if the patient is experiencing full distress it is less likely the treatment will be more effective