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‘I have a blood test coming up — how should I prepare?’: Ask a doctor

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‘I have a blood test coming up — how should I prepare?’: Ask a doctor

It’s common for doctors to recommend getting bloodwork following a medical appointment or routine check-up.

Blood tests can identify deficiencies in vitamins or minerals, immune system problems, or signs of infection, as well as whether organs like the liver, heart or kidneys are functioning correctly, according to the University of Pittsburgh Medical Center.

Fox News Digital spoke with a doctor about how to be prepared for your next blood test.

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Reasons for blood tests

Doctors may order blood tests for three main reasons: screening, diagnostics or monitoring. 

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Blood tests can identify deficiencies in vitamins or minerals, immune system problems, or signs of infection, as well as whether organs like the liver, heart or kidneys are functioning correctly. (iStock)

Screenings are unrelated to symptoms and are based on age, risk factors or the last time you were checked, according to Brintha Vasagar, MD, a family physician with Bayhealth Family Medicine in Dover, Delaware. 

These tests can screen for things like cholesterol, glucose, HIV or hepatitis C. 

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Tests for diagnosis are based on the symptoms you have communicated to your physician, said Vasagar. 

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“We carefully choose bloodwork to help rule in or rule out diseases that might be causing those symptoms,” she told Fox News Digital.

Doctors may order blood tests for three main reasons: screening, diagnostics or monitoring. 

Blood tests for monitoring could be performed if you already have a diagnosis and your physician wants to make sure the treatments are working and to check for any negative side effects, Vasagar said. 

These tests will help your physician make recommendations for changing medicines or lifestyle habits.

What to expect from a blood draw

A technician will take you to a private area and confirm your name and date of birth, Vasagar shared. 

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After seating you in a chair, the technician will place a tight band around your upper arm to help your veins become more accessible. 

Next, the technician will clean the area and insert a small needle to collect vials of blood, the doctor said. 

After seating you in a chair, the technician will place a tight band around your upper arm to help your veins become more accessible.  (iStock)

“Some blood tests require different types of testing, which is why we sometimes need several vials of blood,” she said. 

“When they have what they need, they will remove the needle and hold pressure to help your blood clot.”

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The technician will label each vial of blood with your identifying information and ask you to verify that it is correct, Vasagar added.

What to do before your blood test

If you have any fear or anxiety about getting blood work, experts recommend discussing your concerns with your health care provider ahead of time. 

“They see many people who are anxious about needles and blood, and they can help you calm down,” noted the University of Pittsburgh Medical Center. 

“Some people like to schedule for first thing in the morning so that their fasting time takes place overnight and is less impactful to their daily routine.”

“I usually prepare patients with what we expect the results to be, and when they can expect to meet with me again or receive a call to discuss results,” said Vasagar. 

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“I also tell patients that they will always receive communication about those results, even if they are normal, so if they have not heard anything, they should call.”

If you have any fear or anxiety about getting blood work, experts recommend discussing your concerns with your health care provider ahead of time.  (iStock)

You can carry on with your normal routine the day before a blood test. However, if your doctor has asked you to fast, you should avoid eating or drinking anything other than plain water for eight to 12 hours before your blood test, said Vasagar. 

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“Some people like to schedule for first thing in the morning so that their fasting time takes place overnight and is less impactful to their daily routine,” she said. 

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Fasting is only required for specific blood tests, so it’s important to check with your doctor.

Drinking plenty of water before your appointment will help prepare your veins so that your technician can draw blood more easily. (iStock)

If fasting isn’t required, it’s a good idea to eat and drink before getting your blood drawn to prevent lightheadedness, according to Vasagar. 

“If you start feeling dizzy, tell your technician so they can help you lie down and get you a snack and water,” the doctor said.

      

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Drinking plenty of water before your appointment will help prepare your veins so that your technician can draw blood more easily, she added.

More smart planning tips

Blood will be drawn from your arm, so dress in a way that allows the technician to access your arm. 

“Layering is a great way to stay warm while allowing for easy bloodwork,” Vasagar suggested.

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Feeling prepared can be a good way to combat anxiety. Make a plan to get to your appointment on time and bring your photo ID and insurance card. 

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If you are fasting, you can bring snacks, water or coffee to have as soon as you are finished, the doctor advised.

Having a blood test takes just a few minutes and generally isn’t painful, experts agree. (iStock)

If it makes you feel more comfortable, bring a relative or friend along, or listen to music with headphones to distract you from the needle, the same source suggested.

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Remember that having a blood test takes just a few minutes and generally isn’t painful, experts agree.

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The Best Time To Drink Coffee for Weight Loss and a Faster Metabolism

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‘SuperAgers’ stay mentally sharp well past 80, as scientists reveal the reason

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‘SuperAgers’ stay mentally sharp well past 80, as scientists reveal the reason

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Stat of the week

More than 59% of women may have high blood pressure by 2050, according to a new report from the American Heart Association.

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Heart disease threat projected to climb sharply for key demographic

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Heart disease threat projected to climb sharply for key demographic

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A new report by the American Heart Association (AHA) included some troubling predictions for the future of women’s health.

The forecast, published in the journal Circulation on Wednesday, projected increases in various comorbidities in American females by 2050.

More than 59% of women were predicted to have high blood pressure, up from less than 49% currently.

The review also projected that more than 25% of women will have diabetes, compared to about 15% today, and more than 61% will have obesity, compared to 44% currently.

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As a result of these risk factors, the prevalence of cardiovascular disease and stroke is expected to rise to 14.4% from 10.7%.

The prevalence of cardiovascular disease and stroke in women is expected to rise to 14.4% from 10.7% by 2050. (iStock)

Not all trends were negative, as unhealthy cholesterol prevalence is expected to drop to about 22% from more than 42% today, the report stated.

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Dr. Elizabeth Klodas, a cardiologist and founder of Step One Foods in Minnesota, commented on these “jarring findings.”

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“The fact that on our current trajectory, cardiometabolic disease is projected to explode in women within one generation should be a huge wake-up call,” she told Fox News Digital.

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“Hypertension, diabetes, obesity — these are all major risk factors for heart disease, and we are already seeing what those risks are driving. Heart disease is the No. 1 killer of women, eclipsing all other causes of death, including breast cancer.”

Cardiovascular disease is the leading cause of death for women in the U.S. and around the world. (iStock)

Klodas warned that heart disease starts early, progresses “stealthily,” and can present “out of the blue in devastating ways.”

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The AHA published another study on Thursday revealing one million hospitalizations, showing that heart attack deaths are climbing among adults below the age of 55.

The more alarming finding, according to Klodas, is that young women were found more likely to die after their first heart attack than men of the same age.

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“This is all especially tragic since heart disease is almost entirely preventable,” she said. “The earlier you start, the better.”

Children can show early evidence of plaque deposition in their arteries, which can be reversed through lifestyle changes if “undertaken early enough and aggressively enough,” according to the expert.

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Moving more is one part of protecting a healthy heart, according to experts. (iStock)

Klodas suggested that rising heart conditions are associated with traditional risk factors, like smoking, high blood pressure, high cholesterol, diabetes, obesity and a sedentary lifestyle.

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Doctors are also seeing higher rates of preeclampsia, or high blood pressure during pregnancy, as well as gestational diabetes. Klodas noted that these are sex-specific risk factors that don’t typically contribute to complications until after menopause.

The best way to protect a healthy heart is to “do the basics,” Klodas recommended, including the following lifestyle habits.

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Klodas especially emphasized making improvements to diet, as the food people eat affects “every single risk factor that the AHA’s report highlights.”

“High blood pressure, high blood sugar, high cholesterol, excess weight – these are all conditions that are driven in part or in whole by food,” she said. “We eat multiple times every single day, which means what we eat has profound cumulative effects over time.”

“Even a small improvement in dietary intake, when maintained, can have a massive positive impact on health,” a doctor said. (iStock)

“Even a small improvement in dietary intake, when maintained, can have a massive positive impact on health.”

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The doctor also recommends changing out a few snacks per day for healthier choices, which has been proven to “yield medication-level cholesterol reductions” in a month.

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“Keep up that small change and, over the course of a year, you could also lose 20 pounds and reduce your sodium intake enough to avoid blood pressure-lowering medications,” Klodas added.

“Women should not view the AHA report as inevitable. We have power over our health destinies. We just need to use it.”

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