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Doctor insights on: What Happens During A Pam Test For Cataracts

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What happens during a pam test for cataracts?

What happens during a pam test for cataracts?

Visual potential: Pam or potential acuity meter is a device used to test someones visual potential through cataracts. It is not an absolute reading but a good estimation of what someones vision may be after cataract surgery. ...Read more

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Dr. Richard Bensinger
830 doctors shared insights

Cataracts (Definition)

Occurs whent here is a clouding (or change in protein composition) of the normally clear lens (which is located behind the pupil and iris) inside the eye. Cataracts are most commonly due to aging, but can be congenital (born with it), due to trauma or uveitis (eye inflammation). Can be worsened by long-term topical steroid ...Read more


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What happens during a stress test for the heart?

What happens during a stress test for the heart?

Depends: It depends on which type of stress test is done. If you are able, you will probably walk on a treadmill. If not, a medication will be injected into your vein. The doctor will examine your ekg and some pictures of your heart obtained by injecting slightly radioactive material into your vein. Sometimes, an echocardiogram is done instead of the injection. ...Read more

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Could you tell me what happens during a diabetes test at the dr's?

Could you tell me what happens during a diabetes test at the dr's?

Depends: Upon which test is done. It may be a simple blood test, either fasting or after meal. Could also be glucose tolerance test with multiple blood sugars after ingesting glucose solution. An a1c test can look at the past 3 mos of blood sugars. ...Read more

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When is the earliest I can test for pregnancy? Approximately what date for a 25-29 day cycle? Either blood or urine? Thanks

When is the earliest I can test for pregnancy?  Approximately what date for a 25-29 day cycle? Either blood or urine? Thanks

Results will vary: A blood pregnancy test, the betaHCG test, will usually be positive 8 to 10days after sexual intercourse performed at the time of ovulation. Most urine pregnancy tests will be positive a bit later, that is 14 to 18 days after fertilization. False positive and false negative results are not common any more. ...Read more

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Please explain what happens during a physical test for females in sports?

Please explain what happens during a physical test for females in sports?

Pre-participation: The goal is to perform a thorough history and physical exam to allow you to safely participate in activities and access any risks you may have for injury and recommend any rehab/exercises prior to activity. There are a few history questions that are slightly different for males and females but otherwise it's the same. http://www.acsm.org/docs/brochures/pre-participation-physical-examinations.pdf ...Read more

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Cosopt eyedrops can be use during pregnency.as im glucoma patient age is 39.if i plan for pregnancy is it ok?

 Cosopt eyedrops can be use during pregnency.as im glucoma patient age is 39.if i plan for pregnancy is it ok?

Discuss with doctor: Eye doctor and/or OB. Cosopt eye drops should only be used during pregnancy if her healthcare provider believes that the benefits to her outweigh the possible risks to the fetus. In animal studies, extremely high doses during pregnancy caused problems for both the mother and the fetuses. However, these doses were so high that the same problems are unlikely in humans taking a normal dose. ...Read more

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What sort of blood test can show abnormality if a man can't get an erection at all? Can a wet dream happen without an erection?

What sort of blood test can show abnormality if a man can't get an erection at all? Can a wet dream happen without an erection?

Complicated stuff: The way to determine whether a man can or cannot get an erection is to ask him what happens when he's doing his favorite fantasy thoughts / movies / images. Every grown man knows an emission can happen without an erection. Lab work for erectile dysfunction needs to include testosterone, glucose (& other basic stuff), ferritin and prolactin. ...Read more

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Hi. What is the weakest sleeping pills that I can use every night for a short period without seeing a doctor? Is Alprazolam 0.5 good?

Hi. What is the weakest sleeping pills that I can use every night for a short period without seeing a doctor? Is Alprazolam 0.5 good?

It depends: I would shy away from alprazolam for a multitude of reasons. Herbal and even homeopathic remedies can be helpful. Melatonin 3 mg is safe and without an Rx in US. Antihistamines like diphenhydramine are commonly used and safe for short periods. ...Read more

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Dear doctors, please tell me if i had cocaine 1 week before the drug tests and weed daily until 2 weeks before the tests , what can I do to pass? It is a preemployment test , is that a urin test or can be saliva etc? Many thanks

Dear doctors, 

please tell me if i had cocaine 1 week before the drug tests and weed daily until 2 weeks before the tests , what can I do to pass?  It is a preemployment test , is that a urin test or can be saliva etc?  Many thanks

Stop usage: Although i'm sure i'd be wasting my breath telling you to quit these habits as they are not healthy, self destructive and...Expensive. With that being said...You need to stop using or even inhaling (pot smoke) for at least4 weeks. It is not only blood, urine & saliva test you need to worry about..Many employers are now also demanding hair samples. And the stuff you use, remains for a long time. ...Read more

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What happens in a test for chlamydia?

What happens in a test for chlamydia?

Chlamydia Diagnosis: Some lab tests use urine. Other tests collect a specimen from the cervix or the penis. ...Read more

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After a 24 hour urine test, testing for preeclamsia my protein level was 621. How serious is this? What this tell you about my state of preeclamsia?

After a 24 hour urine test, testing for preeclamsia my protein level was 621. How serious is this? What this tell you about my state of preeclamsia?

Preeclampsia: The cut-off for protein in urine in pregnancy is 300 mg; 621 mg is a little elevated, but still below one gram, which is 1000 mg, for example. In severe cases several grams of protein can be spilled in urine. To gauge the severity of the preeclampsia or to determine if there is toxemia of pregnancy, other factors are important like blood pressure, liver enzymes, number of platelets. ...Read more

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Is it possible for my blood test to detect the aids after 7 years?

Is it possible for my blood test to detect the aids after 7 years?

HIV infection: If you mean if HIV infection can be detected by a blood test, seven years after exposure to the virus, yes. Seven years is long enough for blood tests to provide definitive information. ...Read more

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How long does the test good for? How many years? I had a test done in october . Cardiac cauterization how long is this test good for. Is it done every year

How long does the test good for?  How many years? I had a test done in october . Cardiac cauterization how long is this test good for. Is it done every year

Only when needed: A cath should only be performed if there is a good chance of finding something worth "fixing". It should be guided on symptoms and the results of less invasive tests, particularly stress tests. ...Read more

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What should I expect from a pulmonary function test? What happens during a pulmonary function test? Will i be awake for this and are there risks?

What should I expect from a pulmonary function test? What happens during a pulmonary function test? Will i be awake for this and are there risks?

PFT: You are entirely awake and are asked to breath deeply then exhale as quickly as possible through a tube. This is repeated until you get three exhalations that are about the same. There is no real risk to this. I suppose some patients can hyperventilate and get a bit dizzy. ...Read more

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What time is good for pregnancy test in a day ?

What time is good for pregnancy test in a day ?

Missed Period: The day after you miss a period and the first urine of the day is the time to test. ...Read more

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What happens if I was exposed to gas for a long period of time can it cause me to fail a blood alcohol test?

What happens if I was exposed to gas for a long period of time can it cause me to fail a blood alcohol test?

Don't know what: type of gas you are referring to. Are you referring to inhalation of gasoline ? From what I have read, heavy inhalation of gasoline fumes could impact a breathalyzer test reading. But I do not know if this is by a small amount or more. ...Read more

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I took an hemoglobin test and the result is at 8.2 is this a serious case. I have regular bleeding during periods and i don't have any symptoms as an ?

I took an hemoglobin test and the result is at 8.2 is this a serious case. I have regular bleeding during periods and i don't have any symptoms as an ?

Anemia: That's a low hemoglobin and although you are young and likely will continue to make hemoglobin/red blood cells, you should consider (1) getting tested for any other causes of anemia (2) start taking iron (3) consider birth control pills to decrease the amount of bleeding you have with each period. Hope that helps. Good luck. ...Read more