Sphygmomanometer
Sphygmomanometer - Related Videos
07:24
Physiology of the Circulatory System - Student Protocol
0 Views •
2019
Measuring Circulatory System Function in Humans ExpandBefore starting the experiment go to the front of the room and collect an alcohol swab, a sphygmomanometer, and a stethoscope. Clean the earpieces with the alcohol swab and then insert them into your ears. To check if the stethoscope is in the on position, gently tap the flat metal disc called the diaphragm. If you hear a sound it's on. If not, turn the metal disc and tap again and keep turning and tapping the disc until you hear a sound.
03:26
Physiology of the Circulatory System - Instructor Prep
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2019
Measuring Blood Pressure ExpandTo prepare for the blood pressure exercise, simply place the appropriate number of alcohol swabs, sphygmomanometers, and stethoscopes at the front of the classroom. Be sure to check over each of the component parts of the sphygmomanometers, including the tubing, cuff, manometer, and bulb to ensure they are undamaged. Respiration in Fish ExpandTo prepare for the fish respiration experiment, one week before the goldfish arrive, set up two 10-gallon tanks in the room...
05:33
Physiology of the Circulatory System - Concepts
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2019
Homeostasis Conditions in the external environment of an organism can change rapidly and drastically. To survive, organisms must maintain a fairly constant internal environment, which involves continuous regulation of temperature, pH, and other factors. This balanced state is known as homeostasis, which describes the processes by which organisms maintain their optimal internal conditions. To maintain homeostasis, organisms have developed structures with distinct functions. Physiology is the...
07:21
Measurement of Pulmonary Artery Pressure in Rats Using Right Heart Catheterization
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2025
The protocol provides a detailed introduction to the experience of using the right heart catheterization method to detect pulmonary artery pressure in rats, which will help to obtain accurate data more efficiently and improve the success rate of the experiment. This method also improves the reproducibility of experiments across different laboratories.
09:38
Determining Pain Detection and Tolerance Thresholds Using an Integrated, Multi-Modal Pain Task Battery
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Cited by 17 •
2016
Human pain models are valuable tools used to assess the analgesic potential of novel compounds and predict their clinical efficacy, especially when used in an integrated manner. Although implementation of these models is complex, with proper execution, the pain models described in this protocol can provide predictive and reliable results.
FAQs
During measurement, the inflated cuff temporarily compresses the brachial artery. As cuff pressure falls, clinicians listen for Korotkoff sounds with a stethoscope, using these events to identify systolic and diastolic values. In automated instruments, electronic sensors detect pressure oscillations instead, allowing the device to estimate the corresponding readings without auscultation.
The cuff must be selected appropriately for the patient, and the arm should be positioned consistently during measurement. These conditions influence how effectively the cuff compresses the brachial artery and therefore how reliable the resulting values are. In clinical practice, attention to both factors helps reduce measurement error when assessing cardiovascular function.
Manual devices depend on a clinician identifying Korotkoff sounds through a stethoscope while cuff pressure decreases. Automated devices use electronic detection of pressure oscillations to estimate systolic and diastolic values. Both approaches assess arterial pressure through cuff compression, but they differ in whether sound recognition or electronic signal analysis supplies the measurement information.
The cuff is placed around the upper arm and inflated to temporarily compress the brachial artery. Pressure is then allowed to fall while the clinician listens for Korotkoff sounds or the automated device detects oscillations. Appropriate cuff selection, correct arm positioning, and repeated measurements support a more reliable blood-pressure assessment.
Blood-pressure readings support several clinical activities, including routine screening, diagnosis of hypertension or hypotension, and monitoring during treatment. They also contribute to cardiovascular-risk assessment. Because blood pressure is a vital sign related to cardiovascular function, measurements can be obtained across healthcare settings when clinicians need to evaluate or follow a patient's status.
Repeated measurements improve reliability by providing more than one observation rather than relying on a single reading. When combined with appropriate cuff selection and consistent arm positioning, repetition helps clinicians interpret blood pressure more confidently. This is especially relevant when readings are used for screening, diagnosis, treatment monitoring, or cardiovascular-risk assessment.