Mrs. Lenzo weighs herself every day with a very accurate balance-type scale. She has noticed that over the past 2 days she has gained 4 pounds. How would you best explain this?

Correct Answer: C

Rationale: The correct answer is C. Body fluid fluctuations can cause weight changes on a daily basis. Factors like water retention or dehydration can lead to temporary weight gain or loss. Mrs. Lenzo's 4-pound increase in 2 days is likely due to variations in body fluid levels rather than overeating, clothing, or instrument inaccuracy. It's important to consider physiological factors before jumping to conclusions.

Correct Answer: B

Rationale: The correct answer is B: Nontherapeutic. This statement is nontherapeutic because it implies that the speaker knows what's best for the patient and undermines the expertise of healthcare professionals. It may also create doubt and anxiety in the patient's mind. Other choices are not applicable as the statement clearly falls under the nontherapeutic category.

Correct Answer: D

Rationale: The correct answer is D: Sports/task-specific activities. This phase is crucial as it focuses on integrating the individual back into their specific sport or activity, ensuring they are fully prepared to perform at their pre-injury level. This phase includes sport-specific drills, simulations, and progressive training to mimic the demands of the sport. It helps in enhancing performance, improving skills, and building confidence. A: Resolving pain and inflammation - This is usually addressed in the early stages of rehabilitation to promote healing and reduce discomfort. B: Restoring ROM - This phase focuses on improving range of motion and flexibility, typically done before the strengthening phase. C: Strengthening - While important, this phase precedes the sports-specific activities phase and aims to rebuild strength and stability in the injured area.

Correct Answer: D

Rationale: The correct answer is D: Internal intercostals. The internal intercostal muscles are accessory muscles of expiration, not inspiration. During inspiration, the primary muscles involved are the diaphragm, external intercostals, scalene muscles, and sternocleidomastoid. The pectoralis major and trapezius are not directly involved in the mechanics of inspiration. Therefore, the internal intercostals are the only incorrect choice as they are expiratory muscles, not inspiratory.

Correct Answer: A

Rationale: The correct answer is A: Myelin sheath. Nerve connective tissue includes the endoneurium, perineurium, and epineurium. The myelin sheath is a lipid-rich layer that surrounds certain nerve fibers to facilitate faster nerve impulse conduction but is not considered a component of nerve connective tissue. Endoneurium surrounds individual nerve fibers, perineurium surrounds nerve fascicles, and epineurium encloses multiple fascicles to form a nerve. Therefore, the myelin sheath is not part of the connective tissue layers that make up a nerve.