di vesel ániatomy is important for many different clinical applications. Here we
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di vesel ániatomy is important for many different clinical applications. Here we will examine two: (1) pulse palpatic and (2) locating veins for blood draws and intravenous access. Note that you're not actually going to be sticking each other with needles-you're just going to be finding the veins, not actually putting needles in them. Exercise 18-5 Clinical Applications MATERIALS Blood vessel model or dagram Tourniquets Water-soluble maring pen Alcohol swabs Procedure 1 Pulse Palpation Pulse palpation is the process of using the fingertips to feel pulse points-locations where the artery is superficial enough that the artery's pulsations with cach systole can be felt. It is performed to assess the rate, rhythm, and regulariy of the heartbeat, and to assess the arterial circulation to different parts of the body. The pulse points commonly assessed those found at the radial, ulnar, brachial, carotid, temporal, femoral, popliteal, posterior tibial, and dorsalis pe shown in Figure 18.24 When pulses are palpated, they are graded according to a standard scale. This allows healthcare professionals s te about a patient unambiguously and to assess the progress or deterioration of a patient's condition. The communicat scale utilizes the following four grades: I Grade 0/4: The pulse is absent. 1 Grade 1/4: The pulse is barely or only lightly palpable I Grade 2/4: The pulse is normal. I Grade 3/4: The pulse is abnormally strong. 1 Grade 4/4: The pulse is bounding and visible through the skin. Notice that this scale has no negative numbers or decimal numbers (e.g you would not use -1/4 or 2.514). In a healthy person most pulses are grade 2/4 (read as, "two out of four"), although occasionally a palse is weak or absent. This is simply normal anatomical variation and does not signify pathology. Students often mistakenly grade any strong pulse as 4/4. If a pulse were truly 4/4, however, this would be a sign of extremely high blood pressure in that artery and would possibly be a medical emergency. Most strong, healthy pulses are graded as 2/4 Temporal Please note before you begin that you should never assess both of your lab partner's carotid pulses at the same time. Doing so might initiate the baroreceptor reflex (BEHR-oh-reh-sep-ter), in which the parasympathetic nervous system triggers a reflexive and often dramatic drop in blood pressure and heart rate. This could cause your lab partner to momentarily lose consciousness. Brachial Unar Femoral When you have completed the procedure, answer Check Your Understanding question 6 (p. 504). 1 Wash your hands prior to palpating your lab partner's pulses. 2 On a model or diagram, locate the artery you are palpating 3 Lightly place your index finger and middle finger over the artery. You may increase Radia the pressure slightly, but be careful not to press too hard, because you could cut off blood flow through the artery and also could mistake the pulse in your fingertips for your partner's pulse. If you are unsure if the pulse is yours or your partner's feel the lab table. If the lab table "has a pulse," you are feeling the pulse in your own fingertips. Popiteal Posterior tibial Corsalis pedis 4 Palpate only one side (fright or left) at a time, especially in the carotid artery 5 Grade your partner's pulses according to the 0/4 to 4/4 scale, and record the results in Table 18.3 pulse points. Exploring Anatomy & Physiology in the Laboratory Physiology in the Laboratory 494 Physiology in tt
Explanation / Answer
pulse palpation
Pulse palpation is the tactile arterial palpation of the heart beat by trained finger tips.
Locations
pusle is looked for:
Grades of pulse
Grade 0: pulse is absent
Grade 1: pulse is only barely or lightly palpable
Grade 2: pulse is normal (it is the most puse in healthy person)
Grade 3: pulse is abnormally strong
Grade 4: pulse is bounding and visible through skin (sign of extremely high blood pressure)
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