Which of the following prescriptions requires a Drug Enforcement Administration number?
Antibiotics
Opioids
Antimycotic
Cathartics
The Correct Answer is B
A. Antibiotics: Antibiotics are not controlled substances and do not require a DEA number for prescription.
B. Opioids: Opioids are controlled substances and require a DEA number for prescription due to their potential for abuse and dependence.
C. Antimycotic: Antimycotic drugs, used to treat fungal infections, are not controlled substances and do not require a DEA number.
D. Cathartics: Cathartics, used to induce bowel movements, are not controlled substances and do not require a DEA number.
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Correct Answer is D
Explanation
A. Left bundle branch: The left bundle branch is stimulated after the atrioventricular node and bundle of His, not immediately after the sinoatrial node.
B. Purkinje fibers: The Purkinje fibers are stimulated later in the conduction pathway, after the bundle branches.
C. Right bundle branch: The right bundle branch is also stimulated after the atrioventricular node and bundle of His.
D. Atrioventricular node: After the sinoatrial node initiates the heartbeat, the electrical impulse travels to the atrioventricular node, which then passes the signal to the bundle of His and down to the bundle branches.
Correct Answer is D
Explanation
A. Soak the instrument in hot water: Hot water alone does not effectively sanitize instruments; proper sanitization typically requires cleaning agents and specific processes.
B. Rinse the instrument with a 10% bleach solution: While bleach is used for disinfection, it is not a step in the initial sanitization process.
C. Soak the instrument in a 70% isopropyl alcohol solution: Alcohol is used for disinfection rather than initial sanitization.
D. Rinse the instrument under running water: Rinsing the instrument under running water is a basic step in the sanitization process to remove visible debris before further cleaning and disinfection.