Diagnosis Diagnosing vasovagal syncope usually begins with a physical examination. During this exam, your healthcare professional listens to your heart and checks your blood pressure. They may also gently massage the main arteries in your neck to see if this action makes you feel lightheaded or faint. To rule out other possible causes of fainting, especially those related to the …
Nonallergic Rhinitis
Diagnosis Nonallergic rhinitis is diagnosed based on symptoms, medical history, and exclusion of allergic causes. A healthcare provider will ask about the pattern, duration, and triggers of nasal symptoms, such as exposure to strong odors, weather changes, medications, or irritants. To rule out allergic rhinitis, allergy testing may be performed. Skin prick tests or blood tests can help determine whether …
Vascular Rings
Diagnosis Congenital heart defects can be diagnosed during pregnancy or after birth. Some signs of these heart problems may be visible on a routine pregnancy ultrasound, called a fetal ultrasound. After birth, a healthcare professional may suspect a congenital heart defect if a baby shows signs such as: Growth delays Changes in color on the lips, tongue, or nails A …
Vascular Dementia
Diagnosis Vascular cognitive impairment is usually diagnosed based on symptoms, medical history, and evidence of blood vessel or heart-related issues. There is no single test that can confirm the condition, but several evaluations help identify its cause and severity. Lab tests Laboratory tests provide important information about heart and blood vessel health. These tests also help rule out other possible …
Smallpox
Diagnosis If a smallpox outbreak occurred today, most health care providers would likely not recognize the virus in its early stages. This delay in identification could allow the infection to spread quickly within a community. Because even a single case of smallpox qualifies as a public health emergency, the Centers for Disease Control and Prevention conducts specialized laboratory testing. Tissue …
Varicose Veins
Diagnosis To diagnose varicose veins, a healthcare professional performs a physical examination. This includes checking your legs while you are standing to observe any swelling or visible vein changes. You may also be asked to describe symptoms such as pain, aching, or heaviness in your legs. Tests A venous Doppler ultrasound of the leg is often used to confirm the …
Varicocele
Diagnosis Your healthcare provider can diagnose a varicocele through a physical examination of the scrotum by both visual inspection and touch. You’ll likely be examined while lying down and standing up. When standing, your provider may ask you to take a deep breath, hold it, and bear down, similar to the pressure during a bowel movement. This is called the …
Esophageal Varices
Diagnosis Diagnosis of esophageal varices usually begins after a person is diagnosed with cirrhosis or other conditions that increase pressure in the portal vein (portal hypertension). The goal of diagnosis is to detect swollen veins in the esophagus early to prevent bleeding. Upper endoscopyAn upper endoscopy is the preferred and most accurate test for detecting esophageal varices. A flexible tube …
Chickenpox
Diagnosis Most often, health care providers diagnose chickenpox based on the rash. Chickenpox can also be confirmed with laboratory tests, including blood tests or a tissue study of samples from affected skin. Treatment In otherwise healthy children, chickenpox often doesn’t require medical treatment. Some children may take an antihistamine to reduce itching, but the illness usually needs to run its …
Creutzfeldt-Jakob Disease
Diagnosis The gold standard for confirming Creutzfeldt-Jakob disease, also known as CJD, is a brain biopsy or an autopsy performed after death. However, healthcare professionals can often make an accurate diagnosis before death through medical history, neurological exams, and specific diagnostic tests. Neurological examA healthcare provider checks for neurological signs such as muscle twitching, spasms, reflex changes, coordination problems, vision …









