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Author Archives: Anonymous

Even thought 50-72% of the population may be missing the MSA…

Even thought 50-72% of the population may be missing the MSA nerve, we still administer the MSA injection because we have no way of knowing if it is missing or not.

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What injection(s) would be necessary to administer in order…

What injection(s) would be necessary to administer in order to totally anesthetize tooth #21 for an extraction?

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A dental hygienist administers an inferior alveolar nerve bl…

A dental hygienist administers an inferior alveolar nerve block (IANB) injection on the left side using 1 carpule of lidocaine 2% 1:100,000. All teeth are numb except the left central incisor. What is the most likely explanation for this?

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Which of the following is most likely to cause an allergic r…

Which of the following is most likely to cause an allergic reaction?

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What does the gauge of the needle refer to?

What does the gauge of the needle refer to?

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Which solubility factor primarily determines an anesthetic a…

Which solubility factor primarily determines an anesthetic agent’s potency and effectiveness?

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In an attempt to catch the anesthetic dripping from your nee…

In an attempt to catch the anesthetic dripping from your needle prior to an injection, you touch the needle to a sterile gauze 2 x 2. What should you do?

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An anesthetic agent that contains a vasoconstrictor is _____…

An anesthetic agent that contains a vasoconstrictor is _______________________ than an anesthetic agent without a vasoconstrictor.

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Locking forceps or hemostats are an important part of local…

Locking forceps or hemostats are an important part of local anesthesia armamentarium and are required by WREB.

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Anesthetics decrease or limit the sensation of pain by which…

Anesthetics decrease or limit the sensation of pain by which of the following?

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