Diabetes: The Basics – Monitoring
Introduction to MonitoringMonitoring is defined as observing something and keeping a record of it. In health care situations, you can monitor anything about your body or your reaction to your care plan that matters to your long-term health. If you have diabetes, you need to monitor your own blood sugar (or glucose). In addition, you may need to monitor your own weight and blood pressure. You can also monitor your own actions and feelings, such as what and how much you eat, or whether you feel stressed. This section of these recordings covers how to monitor blood sugar, and also has some information about monitoring blood pressure. If you need to monitor other factors, you will need to decide what to observe, when to observe it, and how to record it. The information you gain from monitoring will help you, your doctor, and your diabetes educator know if diabetes care plan is working well for you. Then you can decide if you need to make changes.
Monitoring Your Blood Glucose When You Have Visual Impairment:5 Frequently Asked Questions When you have diabetes, your good health depends on your ability to both monitor and understand your blood sugar, as well as your blood pressure, weight, and body temperature. If you have vision loss, there are a variety of large print and talking blood glucose meters, blood pressure monitors, thermometers, and weight scales available, with newer, more advanced models frequently becoming available. Below are a few guidelines for the care and use of these items. 1. What is a “normal” blood glucose reading? Your blood glucose (blood sugar) will fluctuate throughout the day; however, it should remain within a certain range. Currently, there are two sets of blood glucose recommendations in the United States: the American Diabetes Association (ADA) guidelines, and the joint recommendations of American Association of Clinical Endocrinologists (AACE) and the American Association of Diabetes Educators (AADE). ADA Recommendations for Adults:
- Blood glucose before eating: 90-130 mg/dl.
- Peak blood glucose after eating (one to two hours after meal): less than 180 mg/dl.
- A1C (a blood test done in the doctor’s office): less than 7.0%.
- Blood glucose before eating: less than 110 mg/dl.
- Peak blood glucose after eating (one to two hours after meal): less than 140 mg/dl.
- A1C (a blood test done in the doctor%27s office): less than 6.5%.
- The instructions for the meter are available in a recorded format.
- The meter speaks or makes some other noise when it is turned on.
- A calibration code is not needed, or the meter announces the calibration code number on the batch of disposable strips you use to obtain a blood glucose reading.
- If a calibration code is needed for each batch of strips, it can be discovered non-visually.
- The voice is clear and medium-pitched.
- The meter can be used with an earphone for privacy.
- The meter announces the time and date, and they can be set non-visually.
- The buttons to operate the meter are distinctive, either by placement or by shape.
- The opening for the placement of the strip is easy to feel.
- It is easy to feel which end of the strip to place in the meter.
- It is easy to feel the location for the drop of blood on the strip.
- Only a very small blood drop is necessary for an accurate reading.
- The meter does not give false low readings when too little blood has been applied.
- The memory of the meter is accessible by voice, and includes dates and times of all readings.
- The meter speaks or makes some other noise when it is turned off.
- The meter turns off automatically if there is no activity for several minutes.
- Strips are readily available.
- The meter and the strips can be purchased from suppliers that bill Medicare and other health insurance providers.
Before You Buy A MeterChecking your blood glucose (or sugar) is something that you can do anytime and anywhere, to find out what your blood glucose level is right at that moment. This can tell you and your doctor how food, physical activity, diabetes medication and stress affect your blood glucose level. Choosing a blood glucose meter that suits your needs will help you feel comfortable with checking your blood sugar whenever and wherever you need to.
What supplies do I need to check my blood glucose?You will need the following supplies:
- A blood glucose meter
- Test strips for the meter you are using
- A way to clean your hands
- Lancets and a lancing device (tools used to get a small drop of blood)
- Paper and pencil, or some other method to record your results. Most meters come with a logbook.
How do I decide which meter to get?Your doctor might tell you what brand of meter to buy, or might ask you to choose for yourself. There are many different kinds of meters; some are easier to use than others. A diabetes educator, and some pharmacists, can show you different meters and help you choose one. Here are eight (8) questions to think about as you look at meters:
- Do you like the size and shape of the meter? Is the meter easy to hold? Will it fit in your purse or pocket?
- Can you see the display easily? Is the display screen large enough for you to see easily? Does it have enough contrast? Are the numbers large and thick enough for you to see? Will you use your meter in the dark, for example at night? If so, does it have backlighting?
- Are the steps for using the meter easy for you? How do you turn the meter on? Do you need to remember to set a code number before using a new can of strips? If so, will you remember to do this? How many steps must you do before you get a test result?
- Are the strips easy for you to handle? Can you hold them easily? Can you open the bottle? Must you insert the strips one at a time? Do the strips come in a cartridge so you can insert several strips at once?
- Does the meter have a memory that you will use? Will you always write down your test result soon after testing, or would you rather rely on your meter’s memory to keep track of your results? How much memory does the meter have? Will that be enough for you? Do you want to be able to keep records of food, exercise and stress in your meter? Do you want a meter that can connect to a computer?
- Will the battery be easy to replace? Is the battery easy to find in a store, or do you have to special order it? What does the battery cost? Is it easy to replace by yourself?
- What will the meter and strips cost you? What will your health insurance cover, and what will you have to pay? An important part of knowing the cost of a meter and strips is to know what your insurance will cover. If you have any type of health insurance, including Medicare and Medicaid, it will probably cover a blood glucose meter and strips. Remember that after you buy a meter, you have to buy the strips that go with it. Because you will keep using strips every day, the strips are the most expensive part of blood sugar monitoring. Check what your insurance company will cover before you buy a meter. You can call the number on the back of your insurance card. Your insurance policy might pay for only a certain brand of meter and strips, or it might cover a certain brand at a higher level. It might have a limit on the number of strips it will cover each month. Or it might only cover meters and strips if you buy them from a specific supplier. Also, you need to find out if you need a prescription from your doctor before your insurance will cover a meter and strips. If you are paying for your own meter, you do not need a prescription.
- Where should you buy a meter and strips? You can buy a meter at a drug store, a medical supply store or through a mail order catalog that carries medical supplies. Think about whether it will be easier for you to buy more strips from a local store, or from a mail-order company. Another factor is that most suppliers, but not all, will fill out the paperwork to bill your insurance company. If your insurance covers meters, and the place you buy one does not fill out insurance paperwork, be sure to keep the receipts you will need to file the paperwork yourself.
- Learn how to use your meter properly. A diabetes educator can teach you how. All meters come with instruction booklets and some with videos. Read the booklet and watch the video. Pay special attention to whether you need to set a code number to match each can of strips, how to apply blood, and how to clean your meter. At the end of this recording, you will find some general instructions for checking your blood sugar.
- Protect your test strips. Sunlight, cold and humidity can ruin strips. Keep them in the box or bottle they came in. Close the box or bottle after taking out a strip. Do not use test strips past the date on the box (expiration date).
- Learn how to do control solution checks. These tests tell you if the meter is in good working order.
- Know how to get help if you need it. Most meters have a toll-free number on the back. If you have questions about how to use your meter, call the number.
- Gather the supplies you need: a meter, lancets, lancing device, test strips, logbook, pen or pencil, and a tissue.
- Load your lancing device with a lancet.
- Wash your hands with warm soapy water and dry them.
- Insert a test strip in your meter, or push a strip out of the cartridge.
- To get a drop of blood: hold the lancing device firmly to your finger and press the button.
- Put the drop of blood on the test strip. Then use a tissue to stop the bleeding.
- The amount of glucose will show on the display screen in a few seconds. Record your result.
Hypoglycemia: Low Blood Sugar
What is hypoglycemia?Hypoglycemia, or low blood sugar, is blood sugar below 70 mg/dl. People taking insulin or some diabetes pills can have hypoglycemia. See the section on Diabetes Pills to learn which pills can cause hypoglycemia. Hypoglycemia must be treated immediately.
How will I know if my blood sugar is too low?Mild symptoms of hypoglycemia: You feel:
- Weak or tired
- Fast heart beat
- Chills or cold hands
- Pale skin color
- Trouble sleeping
- An increase in the mild symptoms
- Confusion, unclear thinking
- Trouble with your sense of balance
- Difficulty speaking
- Numb lips
- Blurred vision
- You pass out
- You cannot be awakened
- You have seizures
- Treat any blood sugar below 70 mg/dl.
- Some people should treat blood sugar below 80 mg/dl.
How should I treat hypoglycemia?If you are awake, eat or drink something containing about 15 grams of sugar. Some good choices are:
- 4 glucose tablets
- 1 tube glucose gel
- 4 ounces (1/2 cup) of orange, apple, or other fruit juice
- 4 ounces (1/2 cup) of regular soda (NOT diet)
- 2 teaspoons of jam, jelly, or syrup
- 7 small hard candies (like Lifesavers)
- 1 cup of low fat milk
- If you are unconscious, do not try to give you food or drink. This could make you choke.
- If you are unconscious, call 911.
- Your doctor might prescribe glucagon for you. This is an injection to help raise blood sugar fast. A family member should learn how to use it.
- Skipping meals or snacks
- Not eating at the right time
- Not eating enough food
- Increased physical activity or exercise
- Not taking medication at the right time(s)
- Accidentally taking too much insulin or diabetes pills
- Drinking too much alcohol
How can I prevent hypoglycemia?
- Know the effects of your diabetes medication, and eat to match its strongest action times.
- Plan your physical activity to fit with your eating and medication actions.
- Monitor your blood sugar, keep records, and know your individual reactions.
- If you have hypoglycemia more than 2 times in one day, or more than 3 times in one week, talk to your doctor or diabetes educator.
- Wear and carry diabetes identification, such as a bracelet or necklace, and a card in your wallet.
- Keep a source of simple sugar with you at all times — in your purse, glove compartment of your car, backpack, or pocket.
- Be sure that family members, co-workers, friends, teachers, and coaches know that you have diabetes, and know what to do if you are confused or pass out.
What is hyperglycemia?Hyperglycemia is high blood sugar (glucose). If hyperglycemia lasts for a long period of time, it can cause damage to your eyes, kidneys, heart, blood vessels and nerves. A blood glucose level of 180 mg/dL or above is considered to be hyperglycemia. Studies have shown that complications from diabetes can be delayed or prevented by keeping blood glucose levels in these target ranges:
- Before meals or fasting: less than 110 mg/dL
- Two hours after a meal: less than 140 mg/dL
Is hyperglycemia ever an emergency?Yes, it can be. Very high blood glucose —above 300 mg/dl —can cause serious problems quickly. High blood sugar can cause dehydration. It can also cause very serious conditions called Diabetic Keto-Acidosis (also known as DKA) or Hyperglycemic Hyperosmolar Non-ketotic Syndrome (HHNS). These are medical emergencies and must be treated at a hospital.
How will I know if my blood glucose is too high?Blood glucose levels vary during the day. How you feel is not a good way to tell if your blood glucose is high. It is best to use a glucose meter several times each day to measure your blood glucose levels. Record these results in a logbook and show them to your doctor and diabetes educator at each visit. Some common symptoms of high blood glucose are:
- Frequent urination
- Increased thirst
- Increased hunger
- Tiredness, lack of energy
- Blurred vision, difficulty seeing clearly
- Slow healing wounds or infections
What can cause hyperglycemia? Here are 5 common causes:
- Not enough physical activity. Regular physical activity can lower your blood glucose levels during exercise and several hours after. But do not exercise if your blood glucose is over 300 mg/dL.
- Too much food or eating at the wrong time. See a dietitian, so you can have a meal plan designed to fit your needs and your life.
- Forgetting to take your diabetes medication or taking it at the wrong time. Talk to your doctor, diabetes educator, or pharmacist about the proper way to take your diabetes medications. If you forget your medication a lot, ask your diabetes educator to help you find ways to remember. If you take some medicines more than once a day, you can also ask your doctor about changing to longer-acting medications.
- Being sick. Talk to your physician about a sick day plan so you can manage your diabetes when you are ill.
- Stress, emotional upset, or feeling anxious. Try to find ways to reduce stress like exercising, reading a book, or using relaxation technique like deep breathing.
What should I do if I have high blood glucose?Continue to take your diabetes medications and test your blood glucose more often. Call your physician if your blood glucose stays above 240 mg/dL OR is above 300 mg/dL two times in a row. Drink 6 – 8 ounces of calorie free, caffeine free liquid every hour to avoid dehydration. Check your urine for ketones, toxic substances your body produces when burning fat for energy. If you have a moderate or large amount of ketones, call your physician.
Monitoring Your Blood PressureMany people who have diabetes also have high blood pressure. Controlling your blood pressure is just as important in preventing diabetes complications as controlling your blood sugar. In fact, some doctors think it might be even more important. The American Heart Association recommends that everyone with high blood pressure monitor it at home. This can help you to control your blood pressure, for many of the same reasons that it monitoring blood sugar can help. It is normal for blood pressure to vary throughout the day, but it should stay in a healthy range. Monitoring your blood pressure can tell you and your doctor whether your meal plan, exercise, and medications are working to control your blood pressure, or whether you need to make changes.
How should I choose a blood pressure monitor?For accurate readings, a monitor should have a cuff that:
- Wraps around the upper arm. Wrist and finger blood pressure monitors are much less accurate.
- Inflates automatically. This is much easier to use by yourself, rather than a cuff that must be inflated by hand.
- Fits your arm. If you have a large arm, a small one will not give an accurate reading.
Will my health insurance cover the cost of a blood pressure monitor?Some policies do, and some do not. Call the number on the back of your insurance card to find out if your does.
When and how should I measure my blood pressure?For many people, it’s a good idea to measure your blood pressure twice a day, in the morning and the evening. You can follow these 5 steps:
- Sit in a chair, with your back straight, your feet on the floor, and your arm supported at about heart level. For example, sitting by a table can give you a place to support your arm and place your blood pressure monitor.
- Sit still for about 5 minutes before you measure your blood pressure.
- Wrap the cuff around your arm, as shown in the instructions that come with the cuff.
- Inflate the cuff, take your reading, and write it down.
- Wait about a minute, and take another reading. Then take a third one. Keep a record of all 3 readings, either by using a meter with a memory, or by writing them down.
What is normal blood pressure?A normal blood pressure reading is less than 120 (the systolic pressure) over less than 80 (the diastolic pressure). The top number measures the pressure in the blood vessels when the heart is beating, and the bottom number when the heart is relaxing. Both numbers are important.
What should I do with my blood pressure readings?
- Look for patterns in them, just as you do with blood sugar readings. Notice how stress, different types of exercise, and different foods affect your blood pressure.
- Take your blood pressure readings with you when you go to the doctor, so you can discuss them.
- If you have higher than normal readings several days in a row, call your doctor.
- If your systolic pressure is higher than 180, or your diastolic pressure is higher than 110, you need emergency medical treatment. Call your doctor for an immediate appointment or go to the emergency room.