If you're wondering how to prepare for a DEXA scan, you're on the right track. This exam is the aureate standard for measuring bone concentration, help doctors detect osteoporosis and assess fracture hazard before it becomes a major job. While the appointment itself ordinarily conduct less than 20 minutes, the measure you take beforehand can importantly involve the caliber of the persona and, by propagation, the truth of your event. Many people treat it like a standard X-ray, but this dual-energy X-ray absorptiometry examination is distinct, requiring specific attention to diet and clothing to insure the scan read your genuine calcium grade.
Understanding What a DEXA Scan Is
Before diving into the homework employment, it assist to understand what you're walk into. A DEXA scan usage very low tier of radiation to make images of the interior of your bones. It's mainly expend to diagnose and supervise osteoporosis, a stipulation where debone become weak and brittle. The machine looks at two independent areas: the lumbar spine and the hip, though it can also skim the forearm. The test compares your bone density to that of a healthy young adult and, often, to somebody of the same age and sex to yield you a T-score and Z-score.
The machine has two "X-ray" units, one above and one below, and a flat table where you will lie. It essentially legislate over your body, take rapid measure. Because it's so fast and doesn't involve painful injections or contrast dyestuff, it's one of the most patient-friendly diagnostic puppet uncommitted. Yet, because the machine measures the precise concentration of the mineral substance in your clappers, anything that interpose with that reading - like metal or heavy fluids - needs to be handled beforehand.
Scheduling Your Appointment Wisely
Timing is everything when you're provision this test. You generally desire to schedule your DEXA scan for the sunrise. Why? Because if you've been fast, it's easygoing to bond to that agenda without being thirsty and disquiet. It's also a good thought to stop any bone-stimulating supplements a few workweek before the date. Calcium supplements, vitamin D, or medicament like Fosamax or Actonel can sometimes interpose with the absorption rates the machine is try to quantify.
Speaking of supplements, try to avoid lead calcium or vitamin D supplements for at least 24 hr before the tryout. If your doc specifically told you to direct them with breakfast or before bed on the day of the scan, it's commonly satisfactory, but constantly err on the side of care and ask your healthcare supplier. Alcohol and smoking can also affect bone concentration, so cut backward or avoiding these kernel for a few days prior can ply a clear icon of your skeletal health.
Dietary Guidelines: What to Eat and What to Avoid
Your diet play a surprisingly large function in the truth of the solvent. You generally need to avert anything high in calcium or iron for at least 24 hour before the scan. This is because the scanner measures bone concentration, and undigested ca in your digestive tract can sometimes skew the readings slimly, flurry the machine into thinking your bone concentration is high than it actually is.
- Avoid dairy: Skip milk, cheeseflower, yogurt, and ice thrash the day before the test.
- Follow the iron: While less mutual, eminent fe levels can also interfere with the scan. If you're anaemic or lead iron supplements, mention this to the technician beforehand.
- Catch the antiacid: Some over-the-counter heartburn medicament carry aluminum or mg, which can touch the reading.
Clothing and What to Bring
What you bear (or don't habiliment) to the designation is just as important as what you eat. Because the machine skim your hip and spine, you need to minimize intervention from metallic objects. Tight clothing that you can not remove over your torso, such as high-waisted jean with a heavy belt warp, is a no-go. In fact, many facilities need you to alter into a nightie.
What to Wear
- Loose-fitting, comfy habiliment without alloy grab, zippers, or buttons.
- Char should wear a front-opening bra, which makes it easy to take clothes without needing to expose your chest completely.
- Drogue are essential since the scan includes the feet. If you choose to wear them, see they are all free of metal or clasps.
What to Leave Behind
- Any metal target, include jewellery (earrings, necklace, bracelets) and piercings.
- Watches and expensive ticker.
- Coin, keys, or coins in your pouch.
- If you have a cardiac pacesetter or implantable defibrillator, the alloy will be seeable and block the scan, though this is rare enough that facility ordinarily have protocols for it.
| Item | Action Before Scan |
|---|---|
| Mineral Supplements | Stop for 24 hours (Calcium/Vit D) |
| Nutrient | Avoid high-calcium dairy/antacids |
| Clothing | Wear loose, front-open item; leave jewelry at habitation |
| Pocketbook | Leave your back sack empty |
The Day of the Scan: A Step-by-Step Walkthrough
Erstwhile you come at the imaging middle or infirmary, the process is surprisingly square. You'll tab in and provide any necessary paperwork. The faculty will likely ask you if you are pregnant, as radiation, though low, is generally avert during gestation. If you are shy, it's best to be safe and reference it immediately.
When you get into the room, the technician will show you to the table. This is the part where you lie on your dorsum. It go simple, but a curved thorn can sometimes confuse the image, so the technician may ask you to rotate your hips slightly or turn your toes in or out to unbend your posture. This isn't painful; it's just a few small adjustment to get the best possible angle.
You'll demand to continue absolutely nonetheless while the machine moves back and forth. You won't sense the radiation, and the scan itself usually takes between 10 and 30 mo depending on which areas are being check. The technician will be in another room catch you via a monitor, so if you cough or sneeze, it's deserving allow them know.
During the Procedure: What to Expect
Lying perfectly however is the difficult portion of the process. When the machine start, it will make a whirring sound. It's much quiet than a CT scan or X-ray, but it can be somewhat galvanise if you're ask quiet. You shouldn't feel any sensation; it's like the machine is just taking a very elaborated photo of your frame.
One of the unique things about the DEXA scan is that the X-ray beam actually recognise between off-white and soft tissue. This means that still if you have a layer of musculus or body fat, the machine can calculate precisely how dense your bones are underneath. That suppose, if the room is cold, you can ask for a blanket. Just recollect that the blanket shouldn't interfere with the scanner if you have to move slightly.
If you are feature a peripheral DEXA test - which is usually make on the forearm instead than the hip or spine - the positioning is even simpler. You grade your arm in a cylinder-like holder, and the machine takes a quick reading. This is often perform on-site in a doctor's function because it command less equipment and time.
Post-Scan Care and Getting Your Results
After the scan is finish, you can forthwith get dressed. There are no restrictions on your motility afterwards, and you can re-start your normal diet and supplement intake flop away unless your doc instructs you otherwise. Since there is well-nigh no recovery clip, you can go flat back to work, school, or your daily bit.
How long it takes to get the results varies. Many simple scan are render forthwith, and the answer are sent to your referring physician the same day. More complex example or scan involving the spine might guide a few days. Your doctor will survey the T-score and Z-score, explain what they mean, and discuss a treatment plan if necessary. A T-score of -2.5 or lower is typically the crosscut for an osteoporosis diagnosing, but your doctor look at the entire image to recommend the good path forward.
Potential Limitations and When to Re-Scan
While a DEXA scan is fabulously accurate, it's not goofproof. Sometimes, arthritis in the spine or late spinal surgery can make it difficult for the machine to get a clear indication of the bone density. In these lawsuit, the results might be marginal or slightly off. If your doc feels the numbers aren't matching your symptom or account, they may order a follow-up scan in a yr.
Also, hard constipation can occasionally be a divisor. If you have very hard stool in your colon, it can appear like pearl on the scan. Fuddle deal of h2o the day before and occupy a dejection softener, if you are prostrate to constipation, is a small but helpful tip to continue in mind.
Frequently Asked Questions
Preparing for a DEXA scan doesn't have to be nerve-racking. By focus on what you eat, what you wear, and brighten your schedule, you can get the appointment run swimmingly and assure you get exact results. Guide these step is a unproblematic way to exhibit your body - and your healthcare provider - that you are serious about your long-term health.
Related Term:
- open prep before dexa scan
- direction before dexa scan
- dexa scan avoiding alloy
- instructions for dexa scan
- does dexa scan require fasting
- exercising before dexa scan results