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Doctor insights on: How Often Can You Have A Ct Scan

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How reliable is ovarian cance that is being detected when you have a CT scan and ultrasound?

How reliable is ovarian cance that is being detected when you have a CT scan and ultrasound?

Depends: There are usually several findings that can be noted on a ct scan &/or sonogram that would make a diagnosis of ovarian cancer more likely. But it would still not be 100% certainty. Depending on specifically, what was seen - the diagnosis could be more (or less) likely to be a cancer. ...Read more

Dr. Mark Ingerman
1 Doctor shared a insight

Computed Tomography (Definition)

Ct uses xrays taken an 360 degrees combined with a computer to see"inside" the body. The table moves as the xray tube and detectors spin around the patient 10 times a second or more! The image shows excellent soft tissue detail, enhanced with injection of intravenous contrast or oral contrast. This way the body is shown in slices, in any plane, usually axially, but ...Read more


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When you have a CT scan why do you need to drink barium sulfate suspension?

Gastrograffin: You do not drink barium for a ct scan, only fluoroscopy exams. Barium is too dense for ct. For a ct you drink gastrograffin in order to highlight the bowel and allow differentiation between bowel and other structures. ...Read more

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What to do if I have to have a CT scan how safe is the contrast dye?

What to do if I have to have a CT scan how safe is the contrast dye?

CT IV contrast: IV contrast is associated with a very low incidence of acute adverse events, and the bulk of these are not life threatening.
Studies report an overall acute adverse reaction rate (allergic-like + physiologic)
of 0.2%-0.7%. Serious acute reactions to IV dye are rare, with an historical rate of approximately 0.04%. FDA review demonstrated a rate of 2.1 fatalities per 1 million injections.
...Read more

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How common is it to have a CT scan with contrast and not find an appendix?

How common is it to have a CT scan with contrast and not find an appendix?

Uncommon: People that have appendicitis are more frequently having CT scans to dx this problem. It is not common to not find an appendix especially if there is one present. There are people that are born without appendix but is rare. ...Read more

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I'm concerned because I have to have a CT scan how safe is the contrast dye?

I'm concerned because I have to have a CT scan how safe is the contrast dye?

Very safe: Assuming you are not allergic to the dye and do not have kidney problems, the dye is safe. People with dye allergies often are allergic to shellfish, or have a history of asthma. They will question you before they give you the injection. ...Read more

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I have a CT scan with contrast they told me not to eat or drink 4 hours before. But I forgot and I ate. What will happen?

Likely nothing: The old protocols for a ct scan with contrast stated that there should be nothing by mouth 4 hours prior to the study. The rationale was to prevent vomiting thought to be caused by the intravenous contrast. The contrast agents currently used have very little likelihood of causing vomiting, so most centers will now allow you to drink clear liquids prior to the study. Still best to avoid solids. ...Read more

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Is it actually healthy for an elderly person with diabetes to have a CT scan?

Is it actually healthy for an elderly person with diabetes to have a CT scan?

Yes: In general, a ct scan can be safely administered to diabetic and or elderly patients. However, if intravenous contrast is going to be administered, at a minimum kidney function should be evaluated, certain medications should be temporarily discontinued, and certain precautions should be taken. ...Read more

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I'm fasting for Ramadan and I need to have a CT scan with IV contrast. Is it dangerous for me to have the CT scan during the fast?

I'm fasting for Ramadan and I need to have a CT scan with IV contrast. Is it dangerous for me to have the CT scan during the fast?

Hydration: No problem as long as well hydrated. IV contrast is excreted through kidneys and can cause renal dysfunction if dehydrated. Usually requested to be NPO few hours before testing. ...Read more

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I have a CT scan with contrast and I was not supposed to take metformin for 48 hours but I accidentally took 1 yesterday morning will I be okay?

I have a CT scan with contrast and I was not supposed to take metformin for 48 hours but I accidentally took 1 yesterday morning will I be okay?

Likely - see ans.: You likely will be fine – that said, the theoretical concern is that iodinated contrast could impair renal function and therefore you could not appropriately excrete the meformin /metabolites causing an extremely unusual condition of lactic acidosis.
The american college of radiology recommends the following based on your clinical category (you should discuss with your dr.):
category I
in patient. ...Read more

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What is it like to have a CT scan on the stomach and pelvis area?

What is it like to have a CT scan on the stomach and pelvis area?

See below: You may be asked to drink contrast before the scan and be injected with intravenous contrast as you are scanned to look inside your body. See the link below.

http://www. Radiologyinfo. Org/en/info. Cfm? Pg=abdominct ...Read more

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What to do if I'm to have a CT scan and ended up in hospital after taking picolax. I now have to make another appointment?

Possibly: Depending on what type of CT scan it is, and whether it relates to the current admission, they may or may not do it while you are in the hospital. ...Read more

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If I have a CT scan w/contrast done on Thursday and bone scan done the following Monday will the contrast effect bone scan results? If so how?

If I have a CT scan w/contrast done on Thursday and bone scan done the following Monday will the contrast effect bone scan results? If so how?

Probably not: CT scan is an IV contrast to arterial vessel of organs.
Bone scan uses a radioactive tracer to look for abnormalities in the bone.
They are 2 different substances. ...Read more

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Increased urine output? I did have a CT scan of my chest yesterday, I heard that the dye can cause increase urine the day after. Is this true?

Increased urine output? I did have a CT scan of my chest yesterday, I heard that the dye can cause increase urine the day after. Is this true?

We'll sort of: The older X-ray dyes or contrast media were hypertonic and did cause a dieresis. Urine output would go up. The newer nonionic media might cause a slight increase. It is still advised to drink water afterward to flush those hardworking kidneys ...Read more

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Is it appropriate to have a CT scan for a bone cyst?

Is it appropriate to have a CT scan for a bone cyst?

Sometimes: The issue is usualy being sure it is a bone cyst and not something more sinister- so imaging is one way to help decide this- sometimes a simple xray picture suffices, sometimes a ct or mr scan or bone scan is needed. Sometimes there is enough uncertainty that a biopsy of the area is needed- often with just a needle. ...Read more

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How often is it really safe to have a CT scan for kidney stones?

How often is it really safe to have a CT scan for kidney stones?

Not often: Having a ct scan exposes a person to low doses of radiation. Most people will have at least one ct scan in there lifetime, which is not harmful. However, people with chronic conditions, like stones, may be exposed to radiation from imaging tests like ct scans multiple times in their life, which can be harmful. Trying to use alternative methods like ultrasound, if possible, is a good option. ...Read more

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If I already know I have a kidney stone is it necessary to have a CT scan?

If I already know I have a kidney stone is it necessary to have a CT scan?

Possibly: If you know you have a kidney stone, a ct scan is not necessary unless symptoms develop. If the person remians asymptomatic, periodic imaging with ultrasound or other x-rays are adequate. However, small stones may be missed on these studies and a ct scan may be required to locate the stone. ...Read more

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Hi! I have a ct scan tomorrow because of my severe headche and some pain. I want to cancel my ct scanbecause of the radiation that cancause cancer.

Hi! I have a ct scan tomorrow because of my severe headche and some pain. I want to cancel my ct scanbecause of the radiation that cancause cancer.

Terrible idea: Listen, Rica. Stop reading doctor-bashing websites written by crooks. If you have a leaking berry aneurysm, you'll either be dead or stroked-out soon without a diagnosis. The radiation from a scan is ~3 mSV, same as an airline pilot gets in a year, and nobody's shown an increased cancer rate in pilots; radiation safety allows 20 mSV/year and there's no increase in cancer either. Do what you must. ...Read more

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Should a 4 week old baby have a CT scan? She sounds stopped up she has been this way since she was born

Should a 4 week old baby have a CT scan? She sounds stopped up she has been this way since she was born

I wouldn't advise it: Typical stuffy nose kids have an unrecognized irritant in their environment like perfume, spoke, cleaning odors, etc. & improve if all such irritants or removed & saline is used liberally to wash the nose out. A ctcould confirm underdeveloped nasal passages but this is evident on exam & the kids usually require a breathing tube from birth. ...Read more

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Dr. Michael Gabor
1,869 Doctors shared insights

Ct Scan (Definition)

Computed tomography (ct scan) or computed axial tomography (cat scan), is a medical imaging procedure that utilizes computer-processed x-rays to produce tomographic images or 'slices' of specific ...Read more