a 44 year old man presents with muscle weakness and fatigue he states that he has experienced difficulty climbing stairs and even holding his arms up
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Nursing Elites

ATI RN

Pathophysiology Practice Exam

1. A 44-year-old man presents with muscle weakness and fatigue. He states that he has experienced difficulty climbing stairs and even holding his arms up to comb his hair. Which test is most likely to help confirm the diagnosis?

Correct answer: A

Rationale: The correct answer is Electromyography (EMG). EMG is commonly used to diagnose conditions involving muscle weakness and fatigue, such as myasthenia gravis. Nerve conduction studies primarily assess nerve function rather than muscle involvement. While a muscle biopsy can provide valuable information, EMG is more specific for evaluating muscle function in this context. A blood test for autoantibodies may be helpful in certain autoimmune conditions but is not the primary test for confirming the diagnosis based on the patient's symptoms of muscle weakness and fatigue.

2. If a patient complains of dizziness, which term below best describes this feeling?

Correct answer: D

Rationale: The correct answer is D: 'Symptom.' Dizziness is a symptom because it is a subjective experience reported by the patient. A 'contraindication' refers to a specific situation in which a drug, procedure, or surgery should not be used because it may be harmful. A 'sign' is an objective finding that can be observed or measured. 'Objective data' refers to measurable and observable information about a patient's condition, which is usually obtained through physical examination or diagnostic tests. Therefore, in this case, 'Symptom' is the best term to describe the patient's feeling of dizziness.

3. What are direct effects of antibodies? (Select ONE that does not apply):

Correct answer: D

Rationale: The direct effects of antibodies include neutralization, agglutination, and precipitation. Antibodies neutralize pathogens by binding to them and preventing their harmful effects. Agglutination involves the clumping together of pathogens, making it easier for phagocytes to engulf them. Precipitation refers to the process where antibodies bind to soluble antigens, forming large complexes that are easily removed from the body. Phagocytosis, on the other hand, is an indirect effect of antibodies where phagocytes engulf and destroy pathogens opsonized by antibodies, not a direct effect.

4. What important information should the nurse provide about the risks associated with tamoxifen (Nolvadex) for a patient with a history of breast cancer?

Correct answer: A

Rationale: The correct answer is A: Tamoxifen may increase the risk of venous thromboembolism. Patients on tamoxifen should be educated about the signs and symptoms of blood clots. Choices B, C, and D are incorrect. Tamoxifen does not decrease the risk of osteoporosis; it may cause hot flashes and other menopausal symptoms, and it may cause weight gain and fluid retention.

5. When communicating with a client who has cognitive impairment, which of the following will Nurse Dory use?

Correct answer: D

Rationale: Nurse Dory will use short words and simple sentences when communicating with a client who has cognitive impairment. This approach is effective because it helps improve understanding and comprehension for individuals with cognitive challenges. Choice A is incorrect because complete explanations with multiple details may overwhelm or confuse clients with cognitive impairment. Choice B is not the most effective option as using pictures or gestures instead of words may not always be practical or necessary. Choice C is also not ideal as stimulating words and phrases may cause distraction rather than enhance communication for clients with cognitive impairment.

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