EKG MEDCA TEST (2023) | All Questions & Answers (Graded 100%)

EKG MEDCA TEST (2023) | All Questions & Answers (Graded 100%) EKG MEDCA TEST (2023) | All Questions & Answers (Graded 100%) Holter monitoring - ANSWER - records cardiac rhythm for a time period of 24 to 48 hours stress testing Stress testing - ANSWER - records and monitors cardiac rhythm during exercise Phonocardiograph Technicians - ANSWER - operate equipment used to record abnormal heart sounds Echocardiograph Technicians - ANSWER - use ultrasound equipment to create 2-dimensional ultrasonic patterns of the heart chambers and valves to detect problems and/or defects Vectorcardiograph Technicians - ANSWER - monitor 3-dimensional tracings of the activity of the heart Sphygmomanometer - ANSWER - blood pressure cuff (used to measure blood pressure) The production and loss of heat are generated and controlled in the - ANSWER - hypothalamus and the brainstem The average adult oral (mouth) temperature is around - ANSWER - 98.6°F The average adult rectal (anus) temperature is around - ANSWER - (0.5°F to 1°F higher than oral temperature) 99.7°F The average adult axillary (arm pit) temperature is around - ANSWER - (0.5°F to 1°F lower than oral temperature) 97.6°F Systolic - ANSWER - contraction of heart, MAXIUM arterial pressure during contraction of the LEFT ventricle of the heart. Diastolic - ANSWER - relaxation and dilatation (expansion) of the heart, MINIMUM arterial pressure during relaxation and dilatation of the heart's ventricles when the ventricles fill with blood. Postural/Orthostatic Hypotension - ANSWER - low blood pressure when a person goes from a sitting or lying position to a standing position Medications that may cause low blood pressure include: - ANSWER - Alpha Blockers, Beta Blockers, Diuretics, Certain antidepressants (tricyclic antidepressants), Drugs for Parkinson's disease, Sildenafil (Viagra), nitroglycerine Postprandial Hypotension - ANSWER - sudden drop in blood pressure after eating. (May affect people with high blood pressure or people suffering autonomic nervous system disorders). Neurally Mediated Hypotension - ANSWER - low blood pressure from faulty brain signals, the decrease blood pressure after standing for longer periods (Mostly affect young people) Shy-Drager Syndrome - ANSWER - main characteristic: severe orthostatic hypotension in combination with very high blood pressure when lying down. Rare disorder causes progressive damage to the autonomic nervous system, which controls involuntary functions such as blood pressure, heart rate, breathing, and digestion. Medications used to treat orthostatic hypotension (low blood pressure when standing up) - ANSWER - -fludrocortisone -midodrine (Orvaten, Proamatine) Normal Blood Pressure - ANSWER - 120/80 mmHg Prehypertension range - ANSWER - systolic pressure: 120 to 139 mmHg diastolic pressure: 80 to 89 mmHg Stage 1 hypertension range - ANSWER - systolic pressure: 140 to 159 mmHg diastolic pressure: 90 to 99 mmHg Stage 2 hypertension - ANSWER - systolic pressure: 160 mmHg or higher diastolic pressure: 100 mmHg or higher Tachypnea - ANSWER - abnormally fast respiration rates (more than 20 breaths per minute) Bradypnea - ANSWER - abnormally low respiration rates (less than 12 breaths per minute) Apnea - ANSWER - breathing completely stops or is significantly reduced Who invented the stethoscope in 1816? - ANSWER - Rene Laennec Who invented the first electrocardiograph, weighing 600 pounds, in 1903? - ANSWER - Willem Einthoven