Physiology ๐ซ Flashcards
What are the methods of detection of heart sounds?
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What does the phonocardiograph consist of?
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What does the stethoscope consist of?
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What is used for low-pitched sounds and high-pitched sounds?
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What are the auscultatory areas of the heart and what are their sites?
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What is the duration of S1,S2,S3 and S4 respectively?
- 0.15
- 0.1
- 0.05
- 0.02
What is the relation to the cardiac cycle of S1,S2,S3 and S4 respectively?
- Isometric contraction and maximum ejection
- isometric relaxation
- terminal part of rapid filling
- mid-point of atrial systoleโ-> presystolic heart sound
What is the cause of S1,S2,S3 and S4 respectively?
- Sudden closure of AV valves + ventricular and vascular component
- sudden closure of semi-lunar valves
- Vibration of the relaxed ventricular wall and the cusps of AV valves
- Vibration of the AV valves cusps due to the rush of blood from atria to ventricles
What are the characters of S1,S2,S3 and S4 respectively?
- Soft and low pitched(25-40Hz), heard as the word lub by the stethoscope
- Sharp and high-pitched(50Hz), here is the word Dub by states of stethoscope
- Low pitched sound that can only be heard in children
- Faint low pitched sound that is not Melanie inaudible
What are the auscultatory sites of S1,S2,S3 and S4 respectively?
- Mitral and tricuspid area
- Aortic area and pulmonary area
- Best heard at the mitral area while the person is in recumbent position and leaning to the left side
- at the mitral area (abnormal)
What are the abnormalities of heart sounds?
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What is the definition of splitting heart sound?
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What is the cause of splitting heart sound?
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What is the cause of splitting of the first heart sound in?
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What is the cause of splitting of the second heart sound? And when is it observed?
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What is the definition of triple or gallop rhythm?
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When does gallop rhythm occur?
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What is the definition of murmurs?
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What is the mechanism of murmurs?
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What are the types of blood flow in vessels?
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What is the time of systolic murmur, diastolic murmur and continuous murmur respectively?
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What is the cause of systolic murmur?
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What is the cause of diastolic murmur?
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What is the cost of continuous murmur? (Machinery murmur)
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What is arterial pulse?
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What is the strength of pulse determined by?
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What is pulse pressure affected by?
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What is the clinical importance of measuring the pulse?
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Where could the arterial pulsation be felt?
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What is the most common site for taking pulse measurements in adults?
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What is the procedure of radial pulse measuring?
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Where is the carotid pulse felt?
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Where is the carotid pulse felt?
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Where is the carotid pulse felt?
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Where is the carotid pulse felt?
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Where is the carotid pulse felt?
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Where is the carotid pulse felt?
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What is the use of ECG?
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What is the number of leads?
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What are the types of leads?
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What do leads measure?
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What is the number and examples of each type of leads?
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What does einthoven law state?
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What is the number of electrodes?
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How are electrodes placed?
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What are the best leads to identify lesions in โฆ.?
Septum
Anterior surface
Lateral surface
Inferior surface
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What are waves in ECG paper? And what is the direction of each one? And what do they represent?
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What is the lead used to comment on ECG paper? And why?
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How to comment on ECG paper?
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What is calibration of ECG?
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What is the paper speed of ECG?
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How is heart rate calculated by ECG?
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How is heart rhythm estimated by ECG?
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What should be estimated for ECG waves?
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What are ECG segments and intervals that may be found in ECG paper?
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What is characteristic about ST segment?
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What is the extension of PR interval?
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What does PR interval represents?
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What is the duration of PR interval?
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What is the extension of QT interval?
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What does QT interval represent?
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What is the duration of QT interval?
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What are cardiac axis? And where do they lie?
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How to determine axis deviation on ECG paper?
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What are the physiological causes of left axis deviation?
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What are the pathological causes of left axis deviation?
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What are the physiological causes of right axis deviation?
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What are the pathological causes of right axis deviation?
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