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What is an early signs of the effect of hypoxemia on the nervous system?
- A. Cyanosis
- B. Restlessness
- C. Tachycardia
- D. Tachypnea
Correct Answer: B
Rationale: The correct answer is B: Restlessness. When the body experiences hypoxemia (low oxygen levels), the brain is deprived of oxygen, leading to early signs such as restlessness. This is due to the brain's attempt to increase oxygen intake by increasing activity. Cyanosis (A) is a late sign of hypoxemia when oxygen levels are critically low. Tachycardia (C) and tachypnea (D) are compensatory mechanisms in response to hypoxemia, but they are not early signs affecting the nervous system directly.
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The nurse is concerned that a patient is at increased risk of developing a pulmonary embolus and develops a plan of care for prevention to include whic h intervention?
- A. Antiseptic oral care
- B. Bed rest with head of bed elevated
- C. Coughing and deep breathing
- D. Mobility
Correct Answer: D
Rationale: The correct answer is D: Mobility. Maintaining mobility helps prevent blood stasis, a leading factor in the development of pulmonary embolism. Movement promotes circulation, reducing the risk of blood clots.
A: Antiseptic oral care is important for oral hygiene but not directly related to preventing pulmonary embolism.
B: Bed rest with head of bed elevated can actually increase the risk of clots due to immobility.
C: Coughing and deep breathing are beneficial for preventing respiratory complications but do not address the underlying cause of pulmonary embolism.
After attending an educational program, the nurse understaanbidrbs.c othma/tte swt hich the following situations would require an ethics consultation?
- A. Conflict has occurred between the primary care provid er and family regarding treatment decisions. A family conference is held, and the family and primary care provider agree to a treatment plan that includes aggres sive treatment for 24 hours followed by re-evaluation.
- B. Family members disagree as to a patient’s course of tre atment. The patient has designated a healthcare proxy and has a written advancaebi rdb.icroemc/tteivste .
- C. A postoperative coronary artery bypass surgery patient was successfully resuscitated after sustaining a cardiopulmonary arrest i n the operating room The patient who is now not responding to treatment has a written advance directive and has a life partner at the bedside.
- D. Patient with multiple trauma and is not responding to treatment. No family members are known, and care is considered futile.
Correct Answer: D
Rationale: Step 1: The correct answer is D because the situation involves a patient with multiple trauma who is not responding to treatment and has no known family members. This indicates a complex ethical dilemma where the medical team may be unsure about the appropriate course of action.
Step 2: In this scenario, an ethics consultation is necessary to help guide decision-making regarding the care of the patient. The lack of available family members complicates decision-making, and the consideration of care as futile adds another layer of complexity.
Step 3: An ethics consultation can provide a structured framework for evaluating the situation, considering ethical principles such as beneficence, non-maleficence, autonomy, and justice. It can help the healthcare team navigate the ethical considerations and make a well-informed decision in the best interest of the patient.
Summary:
Choice A: While conflicts between the primary care provider and family may warrant discussions, the agreement on a treatment plan does not necessarily require an ethics consultation.
Choice B: Disagreement
represent?
- A. Alveolar oxygen tension.
- B. Oxygen that is chemically combined with hemoglobin .
- C. Oxygen that is physically dissolved in plasma.
- D. Total oxygen consumption.
Correct Answer: B
Rationale: The correct answer is B: Oxygen that is chemically combined with hemoglobin. This is because oxygen primarily travels in the blood by binding to hemoglobin in red blood cells, forming oxyhemoglobin. This process allows for efficient transport of oxygen to tissues throughout the body. Choices A, C, and D are incorrect because:
A: Alveolar oxygen tension refers to the partial pressure of oxygen in the alveoli of the lungs, not the specific form of oxygen in the blood.
C: Oxygen physically dissolved in plasma refers to the small amount of oxygen that is not bound to hemoglobin and is less significant in oxygen transport compared to oxygen bound to hemoglobin.
D: Total oxygen consumption is the overall amount of oxygen utilized by the body, not specifically the form of oxygen bound to hemoglobin for transport.
The nurse is assisting with endotracheal intubation and un derstands correct placement of the endotracheal tube in the trachea would be identified by which of the following? (Select all that apply.)
- A. Auscultation of air over the epigastrium
- B. Equal bilateral breath sounds upon auscultation
- C. Position above the carina verified by chest x-ray
- D. Positive detection of carbon dioxide (CO
Correct Answer: B
Rationale: The correct answer is B: Equal bilateral breath sounds upon auscultation. This indicates proper placement of the endotracheal tube in the trachea, ensuring both lungs are being ventilated equally.
Rationale:
1. Auscultation of air over the epigastrium (Choice A) is incorrect as it indicates esophageal intubation, not tracheal intubation.
2. Position above the carina verified by chest x-ray (Choice C) is incorrect as it does not confirm proper placement at the trachea.
3. Positive detection of carbon dioxide (CO2) (Choice D) is incorrect as it indicates the presence of exhaled CO2, but not necessarily proper placement in the trachea.
The nurse is caring for an older adult patient who is in card iogenic shock and has failed to respond to medical treatment. The primary care provider conducts a conference to explain that they have exhausted treatment options and suggest that the patient be made a “do not resuscitate” status. This scenario illustrates what medical concept?
- A. Brain death
- B. Futility
- C. Incompetence
- D. Life-prolonging procedures
Correct Answer: B
Rationale: The correct answer is B: Futility. In this scenario, the primary care provider suggests making the patient a "do not resuscitate" status because further medical treatment is deemed futile. Futility refers to situations where medical interventions are unlikely to achieve the desired outcome. This decision is made when the benefits of continuing treatment do not outweigh the burdens on the patient.
Summary:
A: Brain death does not apply here as the patient is not brain dead.
C: Incompetence refers to the patient's ability to make decisions, not the medical concept being illustrated.
D: Life-prolonging procedures are not being discussed; the focus is on the futility of further treatment.