Taking a Blood Pressure by Palpation
This is how you palpate a blood pressure. The reasons for palpating a blood pressure is primarily because you cannot hear or auscultate for a blood pressure. Sometimes in the back of a noisy ambulance this is impossible to do so this is one way we can at least get a portion of the blood pressure. The only thing this will represent though is the systolic. We will not get a diastolic during this procedure, first, locate the radial pulse. Making sure your patient is in a comfortable seated position. Expose the arm. Place this blood pressure.
Cuff again over the brachial artery. Feel for a pulse again. A radial pulse. As I pump itup I will continue to feel it. And at the point where it goes away ill add about 20 or 30 millimeters of mercury and then slowly allow the air to release. At the time the pulse returns, there, is my systolic. And I am done. This is only going to give me the top number or the systolic. And the way you will represent this on your documentation is to put whatever number the systolic is, we will say 120.
What Is Blood Pressure hypotension hypertension systolic diastolic pressure
Hi i m sami from fawzi academy In this tutorial I will generally talk about blood pressure Blood pressure BP is the pressure exerted by circulating blood upon the walls of blood vessels and is one of the principal vital signs. blood pressure usually refers to the arterial pressure of the systemic circulation, usually measured at a person's upper arm. A person's blood pressure is usually expressed in terms of the systolic pressure over diastolic pressure and is measured in millimeters of mercury mm Hg. Normal resting blood pressure for an adult is approximately 12080 mm Hg.
Blood pressure varies depending on situation, activity, and disease states, and is regulated by the nervous and endocrine systems. Blood pressure that is pathologically low is called hypotension, and pressure that is pathologically high is hypertension. Both have many causes and can range from mild to severe, with both acute and chronic forms. Chronic hypertension is a risk factor for many complications, including peripheral vascular disease, heart attack, and stroke. Hypertension is generally more common, also due to the demands of modern lifestyles. Hypertension and hypotension go often undetected because of infrequent monitoring.
Cardiac Conduction System and Understanding ECG, Animation.
The cardiac conduction system consists of the following components The sinoatrial node, or SA node, located in the right atrium near the entrance of the superior vena cava. This is the natural pacemaker of the heart. It initiates all heartbeat and determines heart rate. Electrical impulses from the SA node spread throughout both atria and stimulate them to contract. The atrioventricular node, or AV node, located on the other side of the right atrium, near the AV valve. The AV node serves as electrical gateway to the ventricles. It delays the passage of electrical impulses to the ventricles.
This delay is to ensure that the atria have ejected all the blood into the ventricles before the ventricles contract. The AV node receives signals from the SA node and passes them onto the atrioventricular bundle AV bundle or bundle of His. This bundle is then divided into right and left bundle branches which conduct the impulses toward the apex of the heart. The signals are then passed onto Purkinje fibers, turning upward and spreading throughout the ventricular myocardium. Electrical activities of the heart can be recorded in the form of electrocardiogram,.
ECG or EKG. An ECG is a composite recording of all the action potentials produced by the nodes and the cells of the myocardium. Each wave or segment of the ECG corresponds to a certain event of the cardiac electrical cycle. When the atria are full of blood, the SA node fires, electrical signals spread throughout the atria and cause them to depolarize. This is represented by the P wave on the ECG. Atrial contraction , or atrial systole starts about 100 ms after the P wave begins. The PQ segment represents the time the signals travel from the SA node to the AV node.
The QRS complex marks the firing of the AV node and represents ventricular depolarization Q wave corresponds to depolarization of the interventricular septum. R wave is produced by depolarization of the main mass of the ventricles. S wave represents the last phase of ventricular depolarization at the base of the heart. Atrial repolarization also occurs during this time but the signal is obscured by the large QRS complex. The ST segment reflects the plateau in the myocardial action potential. This is when the ventricles contract and pump blood.
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