CLINCAL SUBJECTSUSMLE

ECG Pocket brain expanded version for free download

ECG Pocket brain expanded version for free download

ECG Pocket brain expanded version for free download

ECG Pocket brain expanded version for free download  The “good news” (as discussed on the next few pages) — is that use of the Algorithm in Figure 05.2-1 allows accurate diagnosis of the type of conduction defect (BBB or IVCD) in less than 5 seconds!
 The reason we can accurately diagnose the type of conduction defect soquickly — is that:

ECG Pocket brain expanded version for free download  i) There are only 3 possible answers (typical RBBB; typical LBBB; or IVCD); and ii) We only need to look at 3 leads to make the diagnosis. NOTE: With experience — You’ll look at all 12 leads for finer aspects of ECG interpretation. But only 3 leads are needed to diagnose the type of conduction defect.
 The 3 KEY leads (and the only 3 leads needed) to determine the type of conduction defect (RBBB, LBBB, or IVCD) — are leads I, V1, and V6. NOTE: We key in on 2 left-sided leads (leads I,V6) — and 1 right-sided lead (lead V1) when using Figure 05.2-1 to diagnose the type of conduction defect:

ECG Pocket brain expanded version for free download   Remember — Use of the algorithm in Fig. 05.2-1 implies that the rhythm is supraventricular (and not VT or WPW).
05.3 – FIGURE 05.3-1: Why the Need for the BBB Algorithm?
The reason you want to recognize conduction defects before you get too far in the interpretation process — is that criteria for axis, LVH, RVH, ischemia and infarction are all different when there is BBB or IVCD! Consider the example in Figure 05.3-1, obtained from a hemodynamically stable patient with a history of heart failure

ECG Pocket brain expanded version for free download

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