Medical Ranges & Levels

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For college-age individuals, reaction times to light stimuli have been published as 190 milliseconds, or 0.19 seconds, and to auditory stimuli as 160 milliseconds, or 0.16 seconds. Human reaction times vary according to the type of stimuli, the method of measurement and the particular study's results.

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  • What Is the Definition of "legally Deaf"?

    Q: What Is the Definition of "legally Deaf"?

    A: The medical definition of legal deafness is 66 to 85 decibels of hearing loss. On the scale of hearing loss degrees, this is considered severe. Anything over 85 decibels of hearing loss is considered profound. According to the U.S. Centers for Disease Control and Prevention, only those whose hearing impairment impedes their ability to comprehend speech and language are considered to have some level of deafness.
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  • What Is Uraemia?

    Q: What Is Uraemia?

    A: According to Dictionary.com, uraemia, or uremia, is when the waste products that are normally expelled through the urine, such as urea, are backing up into the blood. It is from the Greek words "ouron," meaning urine, and "haima," meaning blood.
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  • How Can a Diabetic Keep His Blood Sugar Levels Within a Normal Range?

    Q: How Can a Diabetic Keep His Blood Sugar Levels Within a Normal Range?

    A: A diabetic keeps his blood sugar levels within a normal range by using the medication his doctor prescribes, consuming a healthy diet and participating in regular activity, according to Mayo Clinic. Even with careful control, blood sugars change quickly, making regular monitoring essential.
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  • How Do Hormones Affect Behavior?

    Q: How Do Hormones Affect Behavior?

    A: According to Sciences 360, hormones affect many facets of human behavior, including emotions, health, sexual attraction and even weight. Sciences 360 defines hormones as chemicals created by a cell or organ that communicate to another cell or organ to help to regulate normal body functions such as sleeping and eating.
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  • What Is the Average Human Reaction Time?

    Q: What Is the Average Human Reaction Time?

    A: For college-age individuals, reaction times to light stimuli have been published as 190 milliseconds, or 0.19 seconds, and to auditory stimuli as 160 milliseconds, or 0.16 seconds. Human reaction times vary according to the type of stimuli, the method of measurement and the particular study's results.
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  • What Are the Parts of a Lab Report?

    Q: What Are the Parts of a Lab Report?

    A: The parts of a scientific lab report include the abstract, introduction, experimental methods and materials, results, discussion, conclusion and references, according to Purdue University. Evergreen Valley College adds a title page and applicable appendices. Each part of a lab report has specific data with a specific purpose so scientists and professionals can read each lab report clearly.
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  • What Are Normal Progesterone Levels?

    Q: What Are Normal Progesterone Levels?

    A: In women, normal progesterone levels from the first to the 14th day of the menstrual cycle are less than 1 nanogram per milliliter, according to WebMD. From the 15 until the 28th day of the menstrual cycle, normal progesterone levels are around 2 to 25 nanograms per milliliter. In men, normal values are less than 1 nanogram per milliliter.
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  • What Is the Highest Fever Ever Recorded?

    Q: What Is the Highest Fever Ever Recorded?

    A: The highest fever ever recorded was 115.7 degrees Fahrenheit. This fever was reported in the Lawrence Journal-World, in July of 1980. A 51-year-old man named Willie Jones suffered heat stroke on July 10, 1980, when the temperature outside was 90 degrees Fahrenheit. He received treatment and survived the fever.
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  • How Do You Read a Blood Test?

    Q: How Do You Read a Blood Test?

    A: The National Heart, Lung, and Blood Institute shows normal ranges for the most common values detected on a blood test, including red blood cell count, white blood cells, platelets, hemoglobin, hematocrit and mean corpuscular volume. The NHLBI also gives normal ranges for blood glucose levels and lipoproteins such as cholesterol. Abnormal results can indicate disease as well as issues with diet, menstrual cycle, physical activity levels, alcohol intake and medicines.
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  • How Much Does Your Skin Weigh?

    Q: How Much Does Your Skin Weigh?

    A: According to the Cleveland Clinic, the skin of an average adult weighs about 6 pounds. Skin covers about 22 square feet of space and renews itself about every 27 days. It is the body's largest organ and plays a critical role in protecting the body from infections and the elements.
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  • How Do You Increase Platelet Count?

    Q: How Do You Increase Platelet Count?

    A: To increase their platelet count, individuals need to treat the underlying cause of thrombocytopenia, according to WebMD. For example, if thrombocytopenia arises because of an infection, treating it can raise the platelet count.
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  • When Do Men Stop Growing Taller?

    Q: When Do Men Stop Growing Taller?

    A: Most men stop growing taller at about age 16, according to KidsHealth.org. Even if they do not grow taller after that age, their muscles usually continue to develop.
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  • What Is the Normal Pulse Rate of an Adult?

    Q: What Is the Normal Pulse Rate of an Adult?

    A: The normal pulse rate of an adult ranges from 60 to 100 beats per minute, according to Medical News Today. This rate temporarily increases or decreases depending on a variety of factors, including physical activity, body temperature and emotional state.
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  • When Should I See a Doctor About High Blood Pressure?

    Q: When Should I See a Doctor About High Blood Pressure?

    A: One should see the doctor if her blood pressure measures above 140/90 over the course of two measurements, states WebMD. It is also important to schedule an appointment if one begins experiencing side effects from blood pressure medicine or if normally controlled blood pressure goes above normal range.
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  • When Does the Human Body Stop Growing?

    Q: When Does the Human Body Stop Growing?

    A: According to Curiosity.com, the human body grows steadily from birth to late teens, at which point the skeletal system has fully formed. However, a few studies have found that both the pelvis and skull continue to grow after the teen years.
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  • What Percent of Your Life Do You Spend Sleeping?

    Q: What Percent of Your Life Do You Spend Sleeping?

    A: On average, human beings spend 33 percent of their lives sleeping, according to Sleep Disorders and Sleep Deprivation. This amounts to about eight hours per day. While not everything is known about sleep, it is a critical physiological need of human beings and other animals.
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  • Why Is Respiration Important?

    Q: Why Is Respiration Important?

    A: Respiration is important because it produces energy that is essential for the normal functioning of the body. Respiration provides cells with oxygen and expels toxic carbon dioxide. The BBC notes that cells need energy for movement, multiplication, the synthesis of essential molecules and maintaining body temperature.
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  • What Is the First Symptom of a Blood Clot in the Calf?

    Q: What Is the First Symptom of a Blood Clot in the Calf?

    A: According to WebMD, the first symptom of a blood clot inside the calf, also known as a deep vein thrombosis, varies from person to person. Common symptoms include calf pain, weakness, swelling or the appearance of bulging surface veins. Deep vein thrombosis can also be present without any symptoms. This is dangerous, because the blood clot can break free and travel to block more critical blood vessels.
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  • What Is a Normal Heart Rate?

    Q: What Is a Normal Heart Rate?

    A: Normal resting heart rate for adults is between 60 and 100 beats per minute, according to the Mayo Clinic. Resting heart rate varies considerably by age, but after 16, teenagers have the same normal range as adults.
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  • What Does a Low Body Temperature Indicate?

    Q: What Does a Low Body Temperature Indicate?

    A: A low body temperature indicates either exposure to cold weather or a decrease in the body's metabolic rate. It can also indicate both. Left unchecked, it may progress to hypothermia, a potentially life-threatening condition. According to Dictionary.com, hypothermia is an abnormal decrease in body temperature.
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  • What Are Acceptable Radon Levels?

    Q: What Are Acceptable Radon Levels?

    A: According to the Environmental Protection Agency, radon levels above 4 pCi/L (picocuries per liter) are dangerous. People who live in homes where the average radon level is more than 4 pCi/L should alter their home to reduce the radon level.
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