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Urinalysis
This common lab test checks urine for signs of disease and for clues about overall health.
VLDL cholesterol: Is it harmful?
Like LDL cholesterol, very-low-density lipoprotein (VLDL) cholesterol is considered a type of 'bad' cholesterol.
Vaginal agenesis
In this rare condition that occurs before birth, the vagina doesn't develop and the uterus may only develop partially or not at all. Learn about treatment.
Vascular rings
Learn more about this condition in which malformations of the aortic arch encircle the windpipe and esophagus and can press against them.
Veggie how to: Grilled vegetable kebabs
Want a new way to enjoy fresh vegetables? Make grilled vegetable kebabs. Brush cherry tomatoes, button mushrooms, zucchini slices, red onions and bell peppers with Italian dressing. Place onto skewers and grill over medium heat, turning often, until the vegetables are tender, about 5 to 8 minutes.
Ventricular fibrillation
Without fast treatment, this heart rhythm problem can cause death within minutes. Learn the symptoms of VFib and what actions to take to save a life.
Vertebral tumor
Vertebral tumors grow in the bones of the spine, causing pain and weakening the spinal column. Read more about how they’re managed, and what to expect.
Video: 3 things you didn't know about cold sores
Cold sores on the lips can be embarrassing and tough to hide. Most people who are infected with the virus that causes cold sores never develop symptoms.
Video: An asthma attack
What happens to your airways during an asthma attack?
Video: Heart and circulatory system
Watch this video to see how a healthy heart works.
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