a1c readings chart


How to Read Down Syndrome Markers on an Ultrasound During Pregnancy

Down syndrome markers are indications, on an ultrasound, that a fetus may have down syndrome. Down syndrome markers found on ultrasounds are controversial, because the markers may occur in fetuses without down syndrome. The markers are not always reliable. Common markers used to identify down syndrome include echogenic bowel, echogenic intracardiac focus, dilation of the […]



How to Read Measurements on an mL Syringe

Most syringes used for injections or to precisely measure oral medication are calibrated in milliliters (mL), also known as cc (cubic centimeters) as this is the standard unit for medication. The most frequently used syringe is the 3 mL syringe, but syringes as small as 0.5 mL and as large as 50 mL are also […]



How to Read a Steel Ruler

The accuracy and durability of steel rulers make them the ideal measuring tool for making crafts, drafting and performing household tasks. They provide more reliable measurements on small projects than tape measures or wooden rulers. Steel rulers are available in either U.S. customary units (inches) or metric units, or both. They come in a range […]



How to Read a Quickvue Pregnancy Test

Doctors’ offices often use Quickvue pregnancy tests to confirm early pregnancy results. Many women prefer to get results in the comfort of their own homes, and Quickvue kits can be purchased for home use. This test is considered 99 percent accurate. It can be taken as little as seven days after becoming pregnant. However, most […]



Can You Read Your iPad App Magazines on Your Computer?

With the size of the screen and the user-friendly interface, many people rely on the iPad for their magazine reading needs instead of opting for the print version. If you purchase magazines on your iPad regularly, you may also wish to read them on your computer monitor. Depending on the method you use to get […]



How to Read a Rim Size

Most rims come with three common sizes stamped or cast into the back side of the hub. These are the most important sizes to determine if the rim will fit the tire and the vehicle you want to put it on. However, there are two other measurements that are often disregarded, and these can be […]



How to Read Music Notes for Snare Drum

A snare drum is one that’s usually small in size. It’s often used in a marching band for a drummer to carry at his side. It’s called a snare drum because it has snares that line the lower head, and they reverberate for sound effect. Reading musical notes is something that one should ideally understand […]



How to Read an Insulin Syringe

If you’ve just been diagnosed with diabetes, or if you know someone who has, you might be overwhelmed with all the details surrounding insulin injections. However, there’s one detail that you don’t have to worry about. Reading an insulin syringe is easy, so if you know how much insulin you are supposed to inject, you’ll […]



How to Read an Architectural Metric Engineer Scale

Blueprints use a ratio or scale to show that the image is smaller or larger than the actual size. The ratio is typically represented using a ratio such as “1:100” or “1:2.5” depending on the type of blueprint. A scale is also a type of ruler that uses a ratio to measure blueprints without the […]



How to Read a Pivot Table

Pivot tables allow you to create an organized summary of data within a spreadsheet. Pivot tables can calculate data by addition, average, counting and other calculations. A data set is summarized in a chart format which can be updated whenever the data set is updated. A pivot table can include multiple columns and rows from […]



How to Troubleshoot a Car Engine Temperature Gauge

To troubleshoot your car’s temperature gauge, you need to know how it works. [IMG] http://img-aws.ehowcdn.com/640/cme/photography.prod.demandstudios.com/19b1d430-dece-4f7a-b8ab-1cf315ed59e0.jpg [/IMG] (Image: Getty) The temperature gauge reading starts out as a reference voltage that is sent to the coolant temperature sensor. This sensor is nothing more than a thermistor — a variable resistor that changes resistance with temperature changes. As […]



How to Read Engineering Blueprints

Every engineering project starts with a good idea, but once the idea is concrete in someone’s mind, it needs to be solidified in engineering blueprints. The blueprints are drawings that engineers and other professionals use to construct the structure. At first glance, these blueprints can seem like hieroglyphics, but reading them requires just a bit […]



How to Read a Multimeter Electric Tester

Multimeters are electrical test meters that can be used as voltmeters, ammeters, or ohmmeters. Basically, a voltmeter measures the volts of an electrical system and a multimeter can be set for DC or AC voltage. Similarly the AC or DC current (ammeter) measured in amps can be measured with a multimeter as well. Finally the […]



How to Read a MOBI

The MOBI file extension, which is short for Mobipocket, is a popular e-book format. Digital Rights Management (DRM) can be used on the format to prevent illegal copying or viewing of e-books. You can read MOBI files on your computer with software that allows you to open them like the Kindle reading apps, FBReader and […]



How to Read Basic EKG

Cardiac output is important to a patient because if the heart is not functioning properly there may not be enough oxygen pumped through the body. The electrocardiogram is a noninvasive procedure using ultrasound waves that charts the rate and rhythmic pulse of the heart over time. (Each small box on the EKG paper spans .04 […]