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TYK48: Difference between revisions
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Which of the following is true concerning succinylcholine use in the pediatric population? | Which of the following is true concerning succinylcholine use in the pediatric population? | ||
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D. Normal patients with have an increase in potassium levels of 1-1.5 mEq/L after a routine succinylcholine dose | D. Normal patients with have an increase in potassium levels of 1-1.5 mEq/L after a routine succinylcholine dose | ||
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==Answer== | ==Answer== | ||
The answer is C. Although in adults gastric pressures may increase by as much as 40 cm H20, the lack of musculature in a small child makes these pressure increases less significant. In a small child, the increases in intragastric pressure are mild and are usually less than 5 cm H20. Intraocular pressure increases about 60 seconds after succinylcholine use. This effect will peak at 2-3 minutes and will decrease back to normal values by 5-7 minutes. This increase in IOP and increase in ICP can be attenuated by a "defasiculating dose" of a non-depolarizing neuromuscular blocking agent. The increase in ICP may also be attenuated by hyperventilation, thiopental or lidocaine. Normal patients will have an increase in serum potassium levels of 0.3-0.5 mEq/L after a dose of succinylcholine. This increase will be exaggerated in anyone with increased extrajunctional receptors (burns, spinal cord injury, etc.). | The answer is C. Although in adults gastric pressures may increase by as much as 40 cm H20, the lack of musculature in a small child makes these pressure increases less significant. In a small child, the increases in intragastric pressure are mild and are usually less than 5 cm H20. Intraocular pressure increases about 60 seconds after succinylcholine use. This effect will peak at 2-3 minutes and will decrease back to normal values by 5-7 minutes. This increase in IOP and increase in ICP can be attenuated by a "defasiculating dose" of a non-depolarizing neuromuscular blocking agent. The increase in ICP may also be attenuated by hyperventilation, thiopental or lidocaine. Normal patients will have an increase in serum potassium levels of 0.3-0.5 mEq/L after a dose of succinylcholine. This increase will be exaggerated in anyone with increased extrajunctional receptors (burns, spinal cord injury, etc.). | ||
==Notes== | ==Notes== | ||
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==Keywords== | ==Keywords== | ||
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