Your Patient Has an "Extensor Lag" of the MCP Joints

question 1

Multiple Choice

Your patient has an "extensor lag" of the MCP joints.What does this suggest?

• A) It is possible to extend the MCP joint passively through the full range of extension,but full active MCP extension is not possible,owing to weakness of the extensor digitorum.
• B) Posterior (dorsal)sliding of the proximal phalanx on the head of the metacarpal is restricted.
• C) Full passive MCP extension is not possible.
• D) It is possible to extend the MCP joint passively through the full range of extension,but full active MCP extension is not possible,owing to weakness of the lumbricales.

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Definitions:

Input Variables

Factors or conditions that are manipulated or controlled in an experiment or study to observe their effect on the outcome.

Output Variables

Variables that measure the effects or results of a process, experiment, or intervention, often used to assess performance or effectiveness.

Overcrowding

A situation where too many individuals occupy a limited space, leading to potential stress, discomfort, and conflict.

Cross-Flows

Movements or exchanges of resources, information, or individuals between different sectors or groups, often enhancing diversity and innovation.