LearningTools: Blood Pressure Basics - Audio-Visual Coordination Skills — Transcript

Full transcript

1. 0:00- [Josh] Hi, I'm Josh Farquharson and welcome
2. 0:03to Blood Pressure: Audio-Visual Coordination Skills.
3. 0:07There are several steps involved
4. 0:09in taking a blood pressure measurement,
5. 0:10and each step must be completed with accuracy.
6. 0:14This is especially true when viewing the blood pressure dial
7. 0:17and listening with the stethoscope.
8. 0:20You must be able to effectively coordinate
9. 0:22what you're hearing with what you're seeing.
10. 0:26Just imagine if you recorded a patient's blood pressure
11. 0:28as normal when in actuality,
12. 0:31their pressure was extremely high,
13. 0:32and they were at risk for having a stroke.
14. 0:36Your inaccuracy can have dire consequences
15. 0:38on the patient's overall health.
16. 0:41This lesson will help you achieve accuracy
17. 0:43when taking blood pressure measurements.
18. 0:47By the end of this lesson,
19. 0:48you will identify and interpret the graduation markings
20. 0:52on an aneroid sphygmomanometer dial
21. 0:55and determine the systolic and diastolic blood pressure
22. 0:58by reading the dial and listening to the Korotkoff sounds.
23. 1:03If you ever had your blood pressure taken,
24. 1:05you likely noticed that the results were stated
25. 1:08as one number over the other number,
26. 1:10such as 120 over 80.
27. 1:13The number on top, in this case, 120,
28. 1:16represents systolic pressure,
29. 1:19and the bottom number, in this case, 80,
30. 1:22represents the diastolic pressure.
31. 1:25Let's take a close look at the dial
32. 1:26used for determining such a measurement.
33. 1:30This is the aneroid sphygmomanometer dial,
34. 1:33also known as the blood pressure dial.
35. 1:36The dial has the letters mmHg
36. 1:39because blood pressure is measured
37. 1:41in millimeters of mercury.
38. 1:44Also, on the dial,
39. 1:45you'll notice that there are lines in various sizes.
40. 1:48The largest lines represent values of 20.
41. 1:52This is 20.
42. 1:53This is 40, 60, and so on.
43. 1:58The medium lines represent values of 10.
44. 2:02This is 30, 50, 70, and so on.
45. 2:07And the smallest lines represent values of two.
46. 2:11So this line represents 22, 24, 26, 28, and so on.
47. 2:20Now let's use the needle
48. 2:21to determine the number displayed on the dial.
49. 2:24Concentrate on the tip of the needle
50. 2:27and the line that it's pointing to.
51. 2:30How much does this line represent?
52. 2:33If you stated 68, you are correct.
53. 2:37So how much does this line represent?
54. 2:42If you stated 112, you are correct.
55. 2:47And how much does this line represent?
56. 2:52If you stated 294, you are absolutely correct.
57. 2:55Great job.
58. 2:57Now that you're comfortable
59. 2:58with reading the blood pressure dial,
60. 3:00let's apply audio-visual coordination skills.
61. 3:04And for this, please increase your volume level
62. 3:07and have a pen and paper on hand.
63. 3:11There are two main areas that you need to focus
64. 3:13on when determining a blood pressure reading.
65. 3:16One, the position of the needle on the dial,
66. 3:20and two, the Korotkoff sounds.
67. 3:24We'll refer to the Korotkoff sounds
68. 3:26as thumping sounds for the duration of this video.
69. 3:30When you arrive at the point of the procedure
70. 3:33when you slowly deflate the cuff to hear the sounds,
71. 3:36you will notice the needle move
72. 3:38in a counterclockwise direction.
73. 3:41It is at this point that you need to listen very closely
74. 3:44for the thumping sounds.
75. 3:49Upon hearing the first thump,
76. 3:51note the needle's position on the dial
77. 3:53and record the number.
78. 3:55That's the systolic pressure.
79. 3:57As the cuff deflates and the needle continues to move,
80. 4:01you will continue to hear the thumping sounds.
81. 4:04Listen closely for the last thump.
82. 4:08Upon hearing the last thump,
83. 4:10note the needle's position on the dial.
84. 4:13That's the diastolic pressure.
85. 4:16Let's practice applying these two steps.
86. 4:20Please note that your answer may be slightly different
87. 4:22from what's displayed, but that's okay.
88. 4:25As long as your answer
89. 4:26is within four millimeters of mercury,
90. 4:29your answers are still considered accurate.
91. 4:32For example, if the displayed answer is 120 over 80,
92. 4:36but your answer falls somewhere in the range
93. 4:39of 118 over 78 through 122 over 82,
94. 4:44your answer is still considered accurate.
95. 4:47Of course, matching the displayed answer
96. 4:49is the goal to achieve the most accurate answer.
97. 4:53Listen closely and write down your answers.
98. 4:56I will reveal the correct answer once the simulation ends.
99. 5:01Here's the first one.
100. 5:31Try another.
101. 5:53Okay, and let's try one more.
102. 6:23So did you answer all of them correctly?
103. 6:26Great job.
104. 6:27Give yourself a huge pat on the back for a job well done.
105. 6:31And there you have it.
106. 6:33You have learned to identify and interpret
107. 6:35the graduation markings
108. 6:37on an aneroid sphygmomanometer dial
109. 6:40and determine the systolic and diastolic blood pressure
110. 6:43by reading the dial
111. 6:44and listening to the Korotkoff sounds.
112. 6:47To stay up to date on other Allied Health learning tools,
113. 6:51you can follow me on Twitter @ahtools1
114. 6:54or subscribe to my Allied Health Tools YouTube channel.