Which of the following needle sizes has the smallest bore?
18G
19G
21G
24G
24G
Rationale: Remember that the larger the gauge, the smaller the needle bore. Therefore, out of these answer choices, a 24G needle has the smallest bore.
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Distended jugular veins, a narrowing pulse pressure, and muffled heart sounds are seen in which of the following conditions?
A. Tension pneumothorax B. Cardiac tamponade C. Traumatic asphyxia D. Commotio cordis
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