A nurse in a provider's office is assessing a client who reports shoulder pain. Which of the following findings by the nurse indicates a rotator cuff injury?
Inability to abduct the arm at the shoulder.
Negative drop arm test.
Alteration in the contour of the joint.
A positive Tinel's sign.
The Correct Answer is A
Choice A reason:
The inability to abduct the arm at the shoulder is a classic sign of a rotator cuff injury. The rotator cuff is responsible for stabilizing the shoulder joint and aiding in various movements, including abduction. When there is a tear or significant weakness in the rotator cuff muscles, especially the supraspinatus muscle, the patient may be unable to lift the arm away from the body or may experience pain while doing so.
Choice B reason:
A negative drop arm test would actually indicate that there is no rotator cuff injury. The drop arm test is performed by asking the patient to fully abduct the arm to 90 degrees and then slowly lower it. If the patient can control the motion and lower the arm smoothly, the test is negative. A positive drop arm test, where the patient cannot control the descent of the arm, would suggest a rotator cuff tear.
Choice C reason:
While an alteration in the contour of the joint may indicate some form of shoulder pathology, it is not specific to a rotator cuff injury. Changes in the contour could be due to various conditions, including dislocation, arthritis, or other musculoskeletal disorders.
Choice D reason:
A positive Tinel's sign is used to diagnose nerve compression or nerve damage, not rotator cuff injuries. It is performed by tapping over the course of a nerve to elicit a tingling sensation or pain in the distribution of the nerve. This sign is commonly associated with conditions like carpal tunnel syndrome.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason:
Lightheadedness is generally not an indication of effective treatment for dehydration. It is often a symptom of dehydration itself, as it can result from decreased blood volume and reduced blood flow to the brain. Effective rehydration should alleviate symptoms like lightheadedness, not present as an indication of it.
Choice B reason:
Decreased pulse pressure may indicate a drop in the volume of blood circulating through the body, which is not a sign of effective rehydration. Pulse pressure is the difference between systolic and diastolic blood pressure readings, and a narrow pulse pressure can be a sign of hypovolemia, or low blood volume, often due to dehydration.
Choice C reason:
Urine output of 75 mL in 1 hr can be considered within the normal range of urine output for an adult, which is typically about 0.5 to 1 mL/kg/hr⁵. This indicates that the kidneys are functioning and the body is excreting waste, suggesting effective rehydration.
Choice D reason:
A urine specific gravity of 1.038 is higher than the normal range of 1.005 to 1.030[^10^]. This indicates concentrated urine, which is commonly seen in dehydration as the body attempts to conserve water. Therefore, this is not an indication of effective treatment for dehydration.
Correct Answer is ["A","B","C"]
Explanation
Choice A reason:
Herpes zoster lesions are indeed contagious if they are draining. The virus can spread through direct contact with the fluid from the blisters. It is crucial to cover the lesions to prevent spreading the virus to others, especially to those who have never had chickenpox or the vaccine.
Choice B reason:
The development of vesicles, which are small fluid-filled blisters, is a hallmark of herpes zoster. These vesicles typically appear in a band-like pattern on one side of the body and are often accompanied by pain, itching, or tingling before they are visible.
Choice C reason:
Postherpetic neuralgia is a condition where the pain persists in the area of the herpes zoster rash even after the lesions have healed. This can last for weeks, months, or even years and is more common in older adults.
Choice D reason:
Herpes zoster itself is not spread like chickenpox. It occurs when the varicella-zoster virus, which has been lying dormant in the nerve cells, reactivates. While it is possible for someone who has never had chickenpox to develop chickenpox after direct contact with a shingles rash, herpes zoster is not "easily spread" to others in the same way that chickenpox is.
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