ATI RN
Adult Health Nursing Study Guide Answers Questions
Question 1 of 5
Which of the following immune cells is primarily responsible for coordinating and regulating immune responses by producing cytokines that direct the activities of other immune cells?
Correct Answer: A
Rationale: T helper cells (Th cells) are primarily responsible for coordinating and regulating immune responses by producing cytokines that direct the activities of other immune cells. These cytokines help in activating cytotoxic T cells, B cells, macrophages, and other cells involved in the immune response. Th cells play a crucial role in mounting an effective immune response against infections and diseases by providing the necessary signals to activate and control various immune cells. Thus, T helper cells are considered the central coordinators of the immune system.
Question 2 of 5
Which of the following conditions is characterized by chronic hypoxemia, pulmonary hypertension, and right heart failure?
Correct Answer: D
Rationale: Cor pulmonale is a condition characterized by right heart failure secondary to pulmonary hypertension, which is often caused by chronic hypoxemia. Chronic hypoxemia occurs in conditions such as chronic obstructive pulmonary disease (COPD) where there is limited airflow in and out of the lungs, leading to low oxygen levels in the blood. However, the specific characteristic of pulmonary hypertension leading to right heart failure distinguishes cor pulmonale from COPD. Other conditions like idiopathic pulmonary fibrosis (IPF) and pulmonary embolism (PE) may also lead to hypoxemia but are not primarily associated with pulmonary hypertension and right heart failure as in cor pulmonale.
Question 3 of 5
A patient with suspected acute exacerbation of asthma presents with severe dyspnea, accessory muscle use, and inability to speak in full sentences. Which of the following interventions is most appropriate for assessing the severity of the patient's asthma exacerbation and guiding management decisions?
Correct Answer: D
Rationale: In the scenario described, the patient is presenting with severe symptoms of acute exacerbation of asthma, including severe dyspnea, accessory muscle use, and inability to speak in full sentences. In such cases, the most appropriate intervention for assessing the severity of the asthma exacerbation and guiding management decisions is a clinical assessment using standardized severity scores.
Question 4 of 5
A patient presents with fatigue, weakness, and jaundice. Laboratory tests reveal elevated indirect bilirubin levels, reticulocytosis, and positive Coombs test. Which of the following conditions is most likely to cause these findings?
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
A patient presents with recurrent episodes of deep vein thrombosis (DVT) and pulmonary embolism (PE). Laboratory tests reveal elevated levels of antiphospholipid antibodies (anticardiolipin and lupus anticoagulant). Which of the following conditions is most likely to cause these findings?
Correct Answer: D
Rationale: Antiphospholipid syndrome is characterized by abnormal antiphospholipid antibodies, which can lead to an increased risk of blood clots such as deep vein thrombosis (DVT) and pulmonary embolism (PE). The two most common antiphospholipid antibodies are anticardiolipin and lupus anticoagulant. Patients with antiphospholipid syndrome can present with recurrent thrombotic events, such as DVT and PE, due to the pro-thrombotic effects of these antibodies. Protein C deficiency, Protein S deficiency, and Antithrombin III deficiency are other causes of hypercoagulability but would not typically present with elevated antiphospholipid antibodies.