Which factors can lead to ineffective laser therapy?

The choice indicating that an inappropriate wavelength or too low dosage can lead to ineffective laser therapy is accurate because both elements are crucial in ensuring the efficacy of the treatment.

The wavelength of the laser is essential because different tissues absorb various wavelengths differently. If the wavelength does not match the absorption characteristics of the target tissue, the laser energy may not penetrate appropriately, resulting in minimal therapeutic effect. For instance, if a tissue requires a specific range of wavelengths for effective treatment and the laser used does not emit within that range, it leads to ineffective outcomes.

On the other hand, administering a dosage that is too low may not provide sufficient energy to elicit a biological response, such as pain relief, tissue healing, or inflammation reduction. Laser therapy relies on delivering an adequate amount of energy to stimulate the desired therapeutic effects. If the energy levels are inadequate, this can prevent the intended physiological response from occurring, rendering the treatment ineffective.

Hence, both the inappropriate wavelength and insufficient dosage directly influence the effectiveness of laser therapy, making this choice the correct answer in the context of factors leading to ineffective treatment outcomes.