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A healthcare provider caring for a client with severe malnutrition reviews the laboratory results and notes a magnesium level of 1.0 mg/dL. Which electrocardiographic change would the healthcare provider expect to note based on the magnesium level?
- A. Prominent U waves
- B. Prolonged PR interval
- C. Depressed ST segment
- D. Widened QRS complexes
Correct Answer: C
Rationale: A magnesium level of 1.0 mg/dL can cause a depressed ST segment on the ECG. Magnesium deficiency commonly leads to ST segment depression on an electrocardiogram. Prominent U waves are associated with hypokalemia, prolonged PR interval is seen in conditions like first-degree heart block, and widened QRS complexes are typically related to conditions affecting the conduction system of the heart, such as bundle branch blocks.
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Nurse Wayne is aware that a positive Chvostek's sign indicates:
- A. Hypocalcemia
- B. Hyponatremia
- C. Hypokalemia
- D. Hypermagnesemia
Correct Answer: A
Rationale: A positive Chvostek's sign indicates hypocalcemia. This sign is elicited by tapping the facial nerve anterior to the ear, resulting in facial muscle twitching due to increased neuromuscular irritability from low calcium levels. Hyponatremia (Choice B) is characterized by low sodium levels, but it does not present with Chvostek's sign. Hypokalemia (Choice C) is low potassium levels, and hypermagnesemia (Choice D) is high magnesium levels, neither of which are associated with Chvostek's sign.
A nurse manager in the emergency department considers policy changes in the organization and changes in the community, and tries to predict how these may impact the functioning of the unit. Which of the following decisional activities best describes this manager's actions?
- A. Resource allocation
- B. Monitoring
- C. Job analysis and redesign
- D. Planning for the future
Correct Answer: D
Rationale: The correct answer is D: Planning for the future. In this scenario, the nurse manager is engaging in decisional activities related to planning for the future. This involves analyzing potential impacts of policy changes and community shifts on the unit's functioning and making decisions based on predictions and foresight. Option A, resource allocation, focuses on distributing resources effectively. Option B, monitoring, involves observing and assessing current activities. Option C, job analysis and redesign, pertains to evaluating and restructuring roles and responsibilities within the unit, which is not the primary focus of the scenario provided.
A healthcare professional is focusing on improving the ability to multitask without losing focus and to turn problems into opportunities. Which of the following leadership theories describes the professional's focus?
- A. Emotional intelligence
- B. Motivation theory
- C. Situational leadership theory
- D. Transformational leadership theory
Correct Answer: B
Rationale: Motivation theory explains that individuals act based on what they want to achieve, focusing on goals and desires. In this scenario, the healthcare professional's emphasis on improving multitasking skills and problem-solving aligns with the essence of motivation theory. Emotional intelligence primarily pertains to understanding and managing emotions, not specifically related to multitasking and problem-solving. Situational leadership theory emphasizes adapting leadership styles based on the situation and followers, not directly related to individual focus improvement. Transformational leadership theory focuses on inspiring and motivating followers to achieve common goals rather than individual task management and problem-solving skills.
Which of the following ethical principles is demonstrated when a nurse provides truthful information to a patient?
- A. Veracity
- B. Autonomy
- C. Justice
- D. Nonmaleficence
Correct Answer: A
Rationale: The correct answer is A: Veracity. Veracity is the ethical principle of truthfulness and honesty in communication. When a nurse provides truthful information to a patient, it demonstrates integrity and respect for the patient's right to know the truth about their health condition and treatment. Choice B, Autonomy, refers to respecting the patient's right to make their own decisions. Choice C, Justice, involves fairness and equality in healthcare decisions. Choice D, Nonmaleficence, relates to the obligation to do no harm and prevent harm to the patient.
The healthcare provider is caring for a client with pheochromocytoma. Which of the following interventions should the healthcare provider implement?
- A. Administer beta-blockers to control blood pressure
- B. Encourage a high-sodium diet
- C. Monitor for signs of hyperglycemia
- D. Restrict fluid intake to prevent edema
Correct Answer: A
Rationale: The correct intervention for a client with pheochromocytoma is to administer beta-blockers to control blood pressure. Pheochromocytoma is a catecholamine-secreting tumor that can cause severe hypertension. Beta-blockers are used to block the effects of catecholamines and help control blood pressure in these clients. Encouraging a high-sodium diet (Choice B) would not be appropriate as it can worsen hypertension. Monitoring for signs of hyperglycemia (Choice C) is not directly related to managing pheochromocytoma. Restricting fluid intake (Choice D) may lead to dehydration and is not a recommended intervention for this condition.