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Dr. David R. J. Vierra JR., MD is an internal medicine hospitalist in Napa, CA specializing in adult hospital medicine. Dr. David R. J. Vierra JR., MD is affiliated with Providence, Providence Medical Foundation, Petaluma Valley - Hospitalists, Petaluma Valley Hospital, Queen of the Valley Medical Center, Providence Medical Group Napa and Providence Medical Network.
Headache
Headaches are dull or sharp pains that occur in regions of the head and face. Headaches occur in many different forms and vary in location, severity, and duration. They are not necessarily a sign of an underlying illness and often resolve on their own. However, headaches can present significant day-to-day discomfort. The most common forms of headaches include:
Living with headaches is challenging; headaches can prevent people from fully enjoying life. Medical treatment and care in avoiding certain triggers can help those with headaches begin to feel normal once again.
Mononucleosis (Mono)
Mononucleosis, frequently called ''mono,'' is a viral infection that causes fatigue, fever, swollen lymph glands, and sore throat. The Epstein-Barr virus (EBV), spread through saliva, is the primary virus that leads to mono. Mono is most common in teenagers and young adults, where EBV is often transmitted through kissing or sharing drinks. For this reason, mono is colloquially referred to as ''the kissing disease.'' Mononucleosis usually resolves on its own; however, recovery from mono can take from several days to several weeks. Some young adults may continue to experience extreme fatigue from mono for months, often requiring a semester home from school.
Mononucleosis happens in three stages:
During the initial stage, those with mono may experience few symptoms as EBV replicates in the body. Symptoms such as headaches and body aches are often misattributed to allergies or stress. People with mono may continue performing their daily activities and attending school, leading to increased transmission of the virus to others. The initial stage lasts for about five to fourteen days.
During the acute stage, mono symptoms intensify and may include the enlargement of the spleen, a sore throat, fatigue, liver issues, and skin rashes. The mono infection is at its worst in this stage.
Lastly, the convalescent stage is when recovery begins. This period of healing can last from two to six months.
Mono can be detected by a physical exam; physicians can diagnose mono by checking for inflamed lymph nodes, tonsils, or spleens. Blood antibody tests may also help diagnose mono by revealing antibodies in the blood that were formed as a response to the Epstein-Barr virus. Elevated levels of white blood cells can also suggest that a patient has mono.
There are no medications specifically for mono or the Epstein-Barr virus, and patients are advised to rest and avoid strenuous exercise. Drinking plenty of fluids, eating a healthy diet, and taking anti-inflammatory ibuprofen (motrin) may also help people who are afflicted with mono feel better.
People with mono should take precautions to avoid spreading the condition to others. They can prevent infection by not sharing glasses, food, and utensils with others until they fully recover.
Thyroid Problems
Thyroid problems are a group of conditions that alter hormone regulation and metabolism. The thyroid is a small, butterfly-shaped gland located in the lower neck, just below the Adam's apple (laryngeal prominence) and larynx (voice box). Despite its small size, the thyroid has an outsized effect on the body by regulating hormones that control metabolism. Metabolism is the body's process of converting consumed food into fuel to power the entire body. Heart rate, weight, cholesterol, body temperature, and even physical growth and development are all affected by the metabolism.
When the thyroid malfunctions, the body is unable to properly process and allocate energy. Thyroid problems, such as hyperthyroidism (overactive thyroid) and hypothyroidism (underactive thyroid), cause irregular metabolism. In some cases, the body produces antibodies that attack the thyroid cells for unknown reasons. The damaged thyroid responds by releasing either too little or too much T3 and T4 thyroid hormones. Thyroid malfunctions may also arise from genetic causes or iodine deficiency. Thyroid problems may include:
Hashimoto's is the leading cause of hypothyroidism, which is when the thyroid does not produce enough hormones to stimulate adequate metabolism. The condition is diagnosed by blood tests that measure TSH (thyroid stimulating hormone) and detect Hashimoto's antibodies. Symptoms of hypothyroidism include sluggish metabolism, inflammation, fatigue, weight gain, brittle hair, dry skin, and sensitivity to cold. To supplement impaired thyroid function, patients with Hashimoto's are typically prescribed synthetic thyroid hormone pills. Such patients may need to consume synthetic thyroids for the rest of their lives. Other treatments may include dietary changes, such as the avoidance of certain foods and medication to reduce inflammation. Frequent blood tests can inform patients if their TSH levels are within a normal range.
Grave's disease is most frequently the cause of hyperthyroidism, which is when the thyroid produces too many hormones, overstimulating one's metabolism. The condition is also diagnosed by blood tests that measure TSH and detect Grave's antibodies. Elevated heart rate, high blood pressure, sweating, bulging eyes, and weight loss are common symptoms of hyperthyroidism. Treatments for hyperthyroidism include oral radioactive iodine, which slowly shrinks the thyroid, slowing the production of excess thyroid hormone. Other anti-thyroid medications such as methimazole (Tapazole) also reduce the production of thyroid hormones. Blood pressure medications known as beta blockers can ease the increased heart rate caused by hyperthyroidism. If treatments are unsuccessful, patients may be prescribed a thyroidectomy, or surgery to remove part or all of the thyroid. Some patients with hyperthyroidism may require ophthalmological (eye medicine) treatments such as eye drops, prednisone, and surgery to reduce eye swelling and bulging.
Untreated thyroid disorders frequently lead to goiters or thyroid nodules. A thyroid goiter is a large lump that can be felt near the base of the neck and is made of swollen thyroid tissue or nodules (excess cell growth). Nodules and goiters are diagnosed by CT scan or ultrasound. Obstructive goiters can cause pain, coughing, and abnormal breathing. The most common cause of goiters is hyperthyroidism (overactive thyroid). However, Hashimoto's is also known to cause goiters or nodules. Goiters develop from continued damage from antibodies to the thyroid over time. At times, a goiter can result from a cancerous thyroid tumor. Most goiters and nodules are themselves benign.
The exact causes of thyroid cancer are unknown. People who develop thyroid cancer may or may not have another thyroid problem such as Hashimoto's or Grave's disease. Symptoms of thyroid cancer include a nodule that can be felt on the neck, hoarseness, difficulty swallowing, swelling in the neck, and neck and throat pain. CT and MRI scans are used to diagnose thyroid cancer. There are four types of thyroid cancer which vary in intensity. Thyroidectomy (thyroid removal surgery) is usually prescribed to treat thyroid cancer.
Thyroid problems are often long-term conditions that require some form of treatment. With regular monitoring and medication, many people with thyroid problems are able to lead active and fulfilling lives.
He has a state license in California.
Licensed In: California
Dr. David R. J. Vierra JR., MD is associated with these hospitals and organizations:
Dr. David R. J. Vierra JR., MD appears to accept the following insurance providers: Aetna PPO, CIGNA PPO, CIGNA HMO, Western Health Advantage HMO, Blue Shield of California, MultiPlan PPO, Medicare Advantage, HealthSmart, Interplan PPO, TriWest, United Healthcare, TRICARE, Anthem Blue Cross HMO, Humana, Anthem Blue Cross PPO, Health Net PPO, Health Net HMO, Anthem, Coventry PPO, United Healthcare PPO, US Family Health Plan, First Health PPO, Aetna Medicare PPO, Partnership Health Plan of California, ChoiceHumana PPO and CoventryFirst Health PPO.
According to our sources, Dr. David R. J. Vierra JR., MD accepts the following insurance providers:
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Dr. David Vierra is an adult hospital medicine specialist in Napa, CA. Dr. Vierra's areas of expertise include alcohol abuse, nasal congestion (stuffy nose), and runner's knee (patellofemoral syndrome). He accepts Anthem, Blue California, HealthSmart, and more. He is professionally affiliated with Providence Medical Foundation.