If One Would Like to Use the Voltage Clamp Technique

question 32

Multiple Choice

If one would like to use the voltage clamp technique to record presynaptic calcium currents from a nerve terminal, why are tetrodotoxin (TTX) and tetraethylammonium (TEA) used?

• A) TTX blocks potassium channels and TEA blocks sodium channels.
• B) TTX blocks sodium channels and TEA blocks potassium channels.
• C) TTX blocks calcium channels and TEA blocks potassium channels.
• D) TTX blocks sodium channels and TEA blocks calcium channels.
• E) TTX blocks sodium channels and TEA blocks chloride channels.

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Definitions:

NANDA-I Nursing Diagnoses

A standardized classification system for identifying and documenting patient problems and conditions as evaluated by nurses.

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Technologies or software designed to assist in making informed and efficient decisions, often used in healthcare, business, or personal planning.

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A process in which doctors directly enter medication orders or other types of patient care orders into a computer system.

Errors in Execution

Mistakes made during the implementation of a planned action, often leading to unexpected or undesired outcomes.