BT_GS 1.21 Describe and give examples of the clinical importance of isomerism.

Diastereoisomers are two molecules that are mirror images of each other, because they have one chiral centre. TRUE / FALSE

Adrenaline preparations are racemic. They contain levo-adrenaline and dextro-adrenaline, which are equipotent. TRUE / FALSE

Ropivacaine contains only the S isomer, which has lower toxicity than the R isomer. TRUE / FALSE

Intravenous glucose solutions contain only D-glucose, because L-glucose cannot be used by cells. TRUE / FALSE

S-ketamine is not currently available in Australia. It would be advantageous, because the R enantiomer causes more hallucinations. TRUE / FALSE

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