tuberculosis mycobacterium usually effects which system
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Nursing Elites

NCLEX-PN

NCLEX PN Exam Cram

1. Which system is primarily affected by tuberculosis (Mycobacterium)?

Correct answer: C

Rationale: Tuberculosis, caused by Mycobacterium tuberculosis, primarily affects the respiratory system. This aerobic bacillus thrives in highly oxygenated body sites, such as the lungs, growing ends of bones, and the brain. The bacillus is airborne, making the lungs a common site for infection. Choices A, B, and D are incorrect as tuberculosis predominantly impacts the respiratory system and rarely involves the stomach, heart, or skin.

2. A client was involved in a motor vehicle accident in which the seat belt was not worn. The client is exhibiting crepitus, decreased breath sounds on the left, complains of shortness of breath, and has a respiratory rate of 34/min. Which of the following assessment findings should concern the nurse the most?

Correct answer: C

Rationale: The correct answer is 'trachea deviating to the right.' A mediastinal shift is indicative of a tension pneumothorax, which is a dangerous complication seen in trauma patients with symptoms like crepitus, decreased breath sounds, shortness of breath, and tachypnea. Assessing for acute traumatic injuries is crucial in this context. Choice A, a temperature of 102�F and a productive cough, is common in pneumonia cases and not as concerning as a mediastinal shift. Choice B, ABGs with a PaO2 of 92 mmHg and PaCO2 of 40 mmHg, shows values within normal limits and does not suggest a tension pneumothorax. Choice D, a barrel-chested appearance, is typical of COPD and not directly related to the acute traumatic injury described. A tension pneumothorax is a medical emergency where air cannot escape the pleural cavity, leading to lung collapse and a mediastinal shift to the unaffected side with a downward displacement of the diaphragm.

3. Support systems during the grieving process include all of the following except:

Correct answer: B

Rationale: During the grieving process, it is essential to have a support system in place. Options B, C, and D - a nurse, a social worker, and a family member, respectively, are individuals who can provide comfort, guidance, and practical assistance to someone who is grieving. However, a despondent friend, as stated in the question, is not an ideal choice for support during this period. A despondent friend is someone who is feeling extremely unhappy and discouraged, and may not have the emotional capacity to provide the needed support to a grieving individual. It is important for someone who is grieving to have support from individuals who can offer understanding, empathy, and strength, which a despondent friend may struggle to provide.

4. After applying oxygen using bi-nasal prongs to a client who is having chest pain, the nurse should implement which intervention?

Correct answer: A

Rationale: After applying oxygen using bi-nasal prongs to a client with chest pain, it is essential for the nurse to post signs indicating that oxygen is in use on the client's door and in their room. This safety precaution alerts healthcare providers and visitors that the client is receiving oxygen therapy, reducing the risk of accidents or misunderstandings. Choice A is incorrect because instructing the client to take slow deep breaths is not the appropriate intervention after applying oxygen. Choice C suggests applying Vaseline and gauze, which is unnecessary and not a standard practice. Choice D advising the client to hyperextend the neck, take deep breaths, and cough is not indicated after applying oxygen therapy and could potentially be harmful.

5. A client, age 28, was recently diagnosed with Hodgkin's disease. After staging, therapy is planned to include combination radiation therapy and systemic chemotherapy with MOPP"?nitrogen mustard, vincristine (Onconvin), prednisone, and procarbazine. In planning care for this client, the nurse should anticipate which of the following side effects to contribute to a sense of altered body image?

Correct answer: B

Rationale: The correct answer is B: Alopecia. Chemotherapy drugs like vincristine can cause alopecia, which is hair loss. This side effect can significantly impact a patient's body image. While Cushingoid appearance (A) can be a side effect of long-term steroid use, temporary or permanent sterility (C) may affect a patient's future fertility but not necessarily alter body image. Pathologic fractures (D) are not common side effects of Hodgkin's disease or its treatment and do not directly contribute to a sense of altered body image in the same way as alopecia does.

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