RN exams medical-surgical practice questions set 29

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When a patient is diagnosed with pneumonia, the breath sounds detected by the nurse on auscultation of the affected area would typically include fine crackles. Fine crackles are discontinuous, high-pitched crackling or rattling sounds heard during inspiration that indicate the presence of fluid in the small airways or alveoli. These crackles are caused by the movement of secretions or exudate within the bronchioles or alveoli, which is a common characteristic of pneumonia. Wheezing sounds are usually associated with conditions such as asthma, bronchitis, or COPD and are caused by narrowed airways. Stridor is a high-pitched, crowing sound that typically indicates an obstruction in the upper airway and is often heard in cases of laryngeal inflammation or foreign body aspiration. Deep and low-pitched breath sounds are more characteristic of conditions like chronic bronchitis.

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The scenario described in the question is most indicative of endometriosis. Endometriosis is a gynecological condition in which tissue similar to the lining of the uterus grows outside of the uterus. Classic symptoms of endometriosis include cyclic pelvic pain, dysmenorrhea (painful periods), and infertility. The presence of a "chocolate cyst" (also known as an endometrioma) within the ovary on pelvic ultrasound is a characteristic finding in endometriosis. These cysts are filled with old blood, giving them a dark, chocolate-like appearance on imaging. Polycystic ovary syndrome (PCOS) typically presents with irregular periods, signs of hyperandrogenism, and multiple small follicles on ultrasound. Ovarian torsion and ovarian cyst rupture would present with acute-onset symptoms and may not necessarily be associated with cyclic pelvic pain and dysmenorrhea as described in the

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The correct answer is D because a history of recent loss of balance and fall in an elderly patient may indicate potential underlying issues such as vestibular dysfunction, neurological problems, medication side effects, or musculoskeletal issues. Further assessment and intervention are crucial to prevent future falls and ensure patient safety. A: Symmetric joint swelling of fingers is common in older adults and may be related to arthritis or other degenerative conditions, but it does not necessarily require immediate intervention. B: Decreased right knee range of motion could be due to age-related changes or arthritis, which may warrant assessment but does not pose an immediate safety risk. C: Report of left hip aching when jogging may indicate musculoskeletal issues or overuse injury, but it does not pose an immediate safety concern that requires urgent intervention.

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Gentamicin peak levels should ideally be between 5 to 8 mcg/mL, and trough levels should be within the range of 0.5 to 2 mcg/mL to ensure therapeutic efficacy while minimizing toxicity risk. In this case, the patient's peak level is above the recommended range, and the trough level is at the higher end, indicating potential drug toxicity. Therefore, the correct action for the healthcare professional is to report the possibility of drug toxicity to the patient's healthcare provider. Administering the next dose as prescribed (Choice A) would exacerbate the toxicity risk. Obtaining repeat peak and trough levels (Choice B) may confirm the current levels but does not address the immediate concern of potential toxicity. Reporting a decreased drug therapeutic level (Choice D) is not the priority in this scenario, as the focus should be on addressing the potential toxicity issue.

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In a patient with acute myocardial infarction (MI) complicated by cardiogenic shock, the primary intervention to manage shock is emergent percutaneous coronary intervention (PCI). PCI is a procedure performed to restore blood flow in an occluded coronary artery that is causing the MI. By opening up the blocked artery and restoring blood flow to the heart muscle, PCI can help reduce myocardial damage, improve cardiac function, and stabilize the patient's condition. Prompt reperfusion via PCI is crucial in the setting of cardiogenic shock to improve survival outcomes and reduce the risk of further complications. Administering inotropic medications, initiating therapeutic hypothermia, or recommending anticoagulant therapy may be components of management in specific cases but are not the primary intervention for managing shock in a patient with acute MI and cardiogenic shock.

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The correct answer is A because during clonal selection, lymphocytes specific to the pathogen are activated, leading to their proliferation and differentiation into effector cells. This results in an increase in the number of lymphocytes specific for the pathogen, enhancing the immune response. Choice B is incorrect because clonal selection does not involve the elimination of non-specific lymphocytes but rather the expansion of specific lymphocytes. Choice C is also incorrect because clonal selection does not change the antigen receptor specificities expressed by lymphocytes but instead focuses on expanding the population of lymphocytes with receptors specific to the pathogen. Therefore, the correct outcome of clonal selection is the increase in the number of lymphocytes specific for the pathogen that activated the response, making choice A the most accurate option.

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The correct answer is B. T-cell receptors must interact with antigens uniquely presented by other cells but not with free antigen. This is because T-cell receptors recognize antigens that are processed and presented on the surface of other cells via major histocompatibility complex (MHC) molecules. T-cell receptors specifically bind to the antigen-MHC complex, allowing T-cells to respond to specific foreign antigens. A: T-cell receptors are not distinguished from antibodies by glycosylation. Both T-cell receptors and antibodies can be glycosylated, so this does not differentiate them. C: T-cell receptors do not bind various cytokines. Cytokine receptors are separate entities that mediate cellular responses to cytokines. D: T-cell receptors do not bind complement to lyse cells. Complement activation is a separate immune response mechanism not involving T-cell receptors.

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The clinical findings of inspiratory crackles (also known as rales) and dullness to percussion are most consistent with a diagnosis of pneumonia. Inspiratory crackles are abnormal lung sounds heard on auscultation and are typically due to the presence of fluid or mucus in the alveoli. Dullness to percussion can indicate consolidation of lung tissue, which is a common finding in pneumonia where the alveolar spaces are filled with inflammatory exudate. These findings suggest localized lung pathology and are commonly observed in patients with pneumonia. Hemoptysis and pleuritic chest pain (Choice B) are more suggestive of pulmonary embolism or pleurisy. Clubbing of the fingers and cyanosis (Choice C) are signs of chronic hypoxemia and are not specific to pneumonia. Decreased breath sounds and tracheal deviation (Choice D) are more indicative of conditions such as a pneumoth

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When a patient receiving palliative care for end-stage COPD expresses a desire to discuss advance care planning, the palliative nurse should initiate a conversation about advance directives and future care preferences. Advance care planning involves discussing and documenting a patient's preferences regarding future medical care, particularly in situations where the patient may no longer be able to make decisions. This discussion helps ensure that the patient's wishes are respected and followed in the event they are unable to communicate their preferences. By engaging in advance care planning discussions, the nurse can help the patient feel empowered, supported, and in control of their medical care decisions. It also allows healthcare providers to align care with the patient's values and goals, ultimately improving quality of life and ensuring dignity at the end of life.

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In a patient with acute kidney injury (AKI) secondary to sepsis in the ICU, the healthcare team should prioritize initiating continuous veno-venous hemofiltration (CVVH) for renal replacement therapy. CVVH is a form of continuous renal replacement therapy that helps support renal function by removing waste products, excess fluids, and electrolytes from the blood while providing hemodynamic stability. This intervention is crucial in managing fluid overload, electrolyte disturbances, and uremia associated with AKI in critically ill patients. It can also help improve overall outcomes and prevent further complications related to renal dysfunction in this setting. Administering diuretics, implementing fluid restriction, or performing a renal biopsy may not directly address the acute renal failure and may not provide the necessary renal support needed in this urgent situation.