E
Key
Green: is a medical procedure.
Orange is medicine.
Blue are diseases and conditions.
Purple is equipment.
Black is "other".
- E -
▪ Echocardiogram: A test that uses sound waves to create a moving picture of the heart using a transducer. A transducer is an instrument that transmits high-frequency sound waves. The transducer picks up the echoes of the sound waves and transmits them as electrical impulses. The echocardiography machine converts these impulses into moving pictures of the heart. Thus, creating a picture that is much more detailed than x-ray image, involving no radiation and needing no additional preparation for the test.
▪ Echovirus: A type of RNA-virus (a similar structure to the common cold). The virus enters the body through the digestive tract, replicates in the intestines, and then spreads to the rest of the body. Transmission is usually through exposure to infected fecal material. In children and adults, the virus usually runs its course after causing mild neurological symptoms. However, in young infants, the disease is often fatal as the virus attacks either the heart or the liver, quickly overwhelming them. Moreover, infants are less likely to have developed antibodies to the virus, and in an epidemic are much more likely to be infected.
▪ Electrocardiogram (EKG): A piece of equipment that measures the electrical impulses that cause the heart to beat as they pass through the body. The EKG consists of several electrodes which are attached to the body of the patient and are connected by wires to the device. The device itself consists of a graphing device (originally paper, although electronic recorders are becoming more common). Each one of the sensors can detect a change in electrical charge in the skin that can only be the result of the impulses that are travelling through the heart and on to the rest of the body.
▪ Electroencephalography (EEG): a medical device designed to measure electrical activity of the brain. Usually, this can only be done indirectly, but measuring the electrical resistance of the skin above the skull. However, even this measurement can reveal a great deal about brain activity and whether it is normal compared to other patients. It is commonly used to diagnose neurological diseases, such as epilepsy, and can be used overnight to diagnose sleep disorders.
▪ Embolism: A pocket of air or fat in a blood vessel that partially or fully prevents blood from passing through the vessel. Air embolisms in certain parts of the body, such as the heart, can be fatal as air can be compressed by blood pressure and absorb the pressure that usually pumps blood through vessels. Fat embolisms can temporarily or permanently block blood vessels.
▪ Encephalitis: An acute inflammation of the brain.
▪ Encephalopathy: Any diffuse disease of the brain that alters brain function or structure. Encephalopathy may be caused by infectious agent (bacteria, virus, or prion), metabolic or mitochondrial dysfunction, brain tumor or increased pressure in the skull, prolonged exposure to toxic elements (including solvents, drugs, radiation, paints, industrial chemicals, and certain metals), chronic progressive trauma, poor nutrition, or lack of oxygen or blood flow to the brain. The hallmark of encephalopathy is an altered mental state.
▪ Environmental Scan: A search of the patient's home and/or workplace to look for toxins or other possible environmental causes for their symptoms.
▪ Epidemic: The rapid spread of a virulent contagious disease throughout a population. It should not be used interchangeably with the term pandemic, which is the outbreak of any disease within a population for any reason, including contagion.
▪ Epilepsy: A term used to describe a group of related neurological disorders, each with a different underlying cause, that exhibit a similar set of symptoms. Historically, these diseases have each been treated as the same disorder due to the similar symptomology, generally frequent seizures which can either be the result of an environmental cause (such as flashing lights) or can come about totally at random. The seizures can range widely from absence seizures to serious grand mal seizures.
▪ Exploratory Surgery: Surgical procedures used for diagnostic purposes which require an open incision. It does not include procedures such as a biopsy, which do not require an open incision. It is used as a last resort when other symptoms indicate an underlying disease that cannot be detected by radiology or other non-invasive tests. This can include things like bleeding within the body and very small tumors. Exploratory surgery allows a physician to use both his or her eyes and sense of touch to detect an underlying condition.
By Letter
| A | | B | | C | | D | | E | | F | | G | | H | | I | | J | | K | | L | | M |
| N | | O | | P | | Q | | R | | S | | T | | U | | V | | W | | X | | Y | | Z |
Green: is a medical procedure.
Orange is medicine.
Blue are diseases and conditions.
Purple is equipment.
Black is "other".
- E -
▪ Echocardiogram: A test that uses sound waves to create a moving picture of the heart using a transducer. A transducer is an instrument that transmits high-frequency sound waves. The transducer picks up the echoes of the sound waves and transmits them as electrical impulses. The echocardiography machine converts these impulses into moving pictures of the heart. Thus, creating a picture that is much more detailed than x-ray image, involving no radiation and needing no additional preparation for the test.
▪ Echovirus: A type of RNA-virus (a similar structure to the common cold). The virus enters the body through the digestive tract, replicates in the intestines, and then spreads to the rest of the body. Transmission is usually through exposure to infected fecal material. In children and adults, the virus usually runs its course after causing mild neurological symptoms. However, in young infants, the disease is often fatal as the virus attacks either the heart or the liver, quickly overwhelming them. Moreover, infants are less likely to have developed antibodies to the virus, and in an epidemic are much more likely to be infected.
▪ Electrocardiogram (EKG): A piece of equipment that measures the electrical impulses that cause the heart to beat as they pass through the body. The EKG consists of several electrodes which are attached to the body of the patient and are connected by wires to the device. The device itself consists of a graphing device (originally paper, although electronic recorders are becoming more common). Each one of the sensors can detect a change in electrical charge in the skin that can only be the result of the impulses that are travelling through the heart and on to the rest of the body.
▪ Electroencephalography (EEG): a medical device designed to measure electrical activity of the brain. Usually, this can only be done indirectly, but measuring the electrical resistance of the skin above the skull. However, even this measurement can reveal a great deal about brain activity and whether it is normal compared to other patients. It is commonly used to diagnose neurological diseases, such as epilepsy, and can be used overnight to diagnose sleep disorders.
▪ Embolism: A pocket of air or fat in a blood vessel that partially or fully prevents blood from passing through the vessel. Air embolisms in certain parts of the body, such as the heart, can be fatal as air can be compressed by blood pressure and absorb the pressure that usually pumps blood through vessels. Fat embolisms can temporarily or permanently block blood vessels.
▪ Encephalitis: An acute inflammation of the brain.
▪ Encephalopathy: Any diffuse disease of the brain that alters brain function or structure. Encephalopathy may be caused by infectious agent (bacteria, virus, or prion), metabolic or mitochondrial dysfunction, brain tumor or increased pressure in the skull, prolonged exposure to toxic elements (including solvents, drugs, radiation, paints, industrial chemicals, and certain metals), chronic progressive trauma, poor nutrition, or lack of oxygen or blood flow to the brain. The hallmark of encephalopathy is an altered mental state.
▪ Environmental Scan: A search of the patient's home and/or workplace to look for toxins or other possible environmental causes for their symptoms.
▪ Epidemic: The rapid spread of a virulent contagious disease throughout a population. It should not be used interchangeably with the term pandemic, which is the outbreak of any disease within a population for any reason, including contagion.
▪ Epilepsy: A term used to describe a group of related neurological disorders, each with a different underlying cause, that exhibit a similar set of symptoms. Historically, these diseases have each been treated as the same disorder due to the similar symptomology, generally frequent seizures which can either be the result of an environmental cause (such as flashing lights) or can come about totally at random. The seizures can range widely from absence seizures to serious grand mal seizures.
▪ Exploratory Surgery: Surgical procedures used for diagnostic purposes which require an open incision. It does not include procedures such as a biopsy, which do not require an open incision. It is used as a last resort when other symptoms indicate an underlying disease that cannot be detected by radiology or other non-invasive tests. This can include things like bleeding within the body and very small tumors. Exploratory surgery allows a physician to use both his or her eyes and sense of touch to detect an underlying condition.
By Letter
| A | | B | | C | | D | | E | | F | | G | | H | | I | | J | | K | | L | | M |
| N | | O | | P | | Q | | R | | S | | T | | U | | V | | W | | X | | Y | | Z |