Nokea
Complications common to patients receiving hemodialysis for acute kidney injury include which of the following? (Select all that apply.)
- A. Hypotension
- B. Dysrhythmias
- C. Muscle cramps
- D. Hemolysis
Correct Answer: A
Rationale: The correct answer is A, hypotension. During hemodialysis for acute kidney injury, fluid removal can lead to hypotension due to rapid changes in blood volume. This can cause dizziness, weakness, and even loss of consciousness. Dysrhythmias (choice B) are less common but can occur due to electrolyte imbalances. Muscle cramps (choice C) may occur during or after dialysis due to electrolyte imbalances or fluid shifts, but they are not as common as hypotension. Hemolysis (choice D) is not a common complication of hemodialysis for acute kidney injury, as it is more commonly associated with issues related to the dialysis machine or blood tubing.
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Intrapulmonary shunting refers to what outcome?
- A. Alveoli that are not perfused.
- B. Blood that is shunted from the left side of the heart to t he right and causes heart failure.
- C. Blood that is shunted from the right side of the heart to the left without oxygenation.
- D. Shunting of blood supply to only one lung.
Correct Answer: C
Rationale: Step-by-step rationale for why choice C is correct:
1. Intrapulmonary shunting refers to blood bypassing the normal oxygenation process in the lungs.
2. Choice C describes blood being shunted from the right side of the heart (deoxygenated blood) to the left side without oxygenation, leading to systemic circulation without oxygenation.
3. Choices A, B, and D do not accurately describe intrapulmonary shunting as they focus on other concepts like alveolar perfusion, heart failure, and unilateral lung blood supply, respectively.
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 a patient receiving benzodiazepine intermittently. What is the best way to administer such drugs?
- A. Medicate around the clock, rather than as needed, to en sure constant sedation.
- B. Administer the medications through the feeding tube to prevent complications.
- C. Give the highest allowable dose for the greatest effect.
- D. Titrate to a predefined endpoint using a standard sedat ion scale.
Correct Answer: D
Rationale: The correct answer is D: Titrate to a predefined endpoint using a standard sedation scale. This approach ensures individualized dosing based on the patient's response, minimizing the risk of over-sedation or under-treatment. It allows for careful monitoring and adjustment of dosage to achieve the desired level of sedation while avoiding adverse effects.
A: Administering medication around the clock may lead to unnecessary sedation and increased risk of side effects.
B: Administering medications through a feeding tube is not recommended for benzodiazepines as it may affect absorption and increase the risk of complications.
C: Giving the highest allowable dose without considering individual response can result in excessive sedation and adverse effects.
The nurse is caring for a patient receiving continuous norepinephrine (Levophed) IV infusion. Which patient assessment finding indicates that the infusion rate may need to be adjusted?
- A. Heart rate is 58 beats/minute.
- B. Mean arterial pressure (MAP) is 56 mm Hg.
- C. Systemic vascular resistance (SVR) is elevated.
- D. Pulmonary artery wedge pressure (PAWP) is low.
Correct Answer: B
Rationale: The correct answer is B because a low Mean Arterial Pressure (MAP) indicates inadequate perfusion, which may require adjusting the norepinephrine infusion rate to increase blood pressure. A: A heart rate of 58 beats/minute is within a normal range and may not necessarily indicate a need for adjustment. C: Elevated Systemic Vascular Resistance (SVR) may be an expected response to norepinephrine and does not necessarily indicate a need for adjustment. D: A low Pulmonary Artery Wedge Pressure (PAWP) may indicate fluid volume deficit but does not directly relate to the need for adjusting norepinephrine infusion rate.
The nurse obtains the pulse rate of 89 beats/minute for an infant before administering digoxin (Lanoxin). Which action should the nurse take?
- A. Withhold the medication and contact the healthcare provider.
- B. Give the medication dosage as scheduled.
- C. Assess respiratory rate for one minute next.
- D. Wait 30 minutes and give half of the dosage of medication.
Correct Answer: A
Rationale: The correct answer is A. Infants typically have higher resting heart rates than adults, so a pulse rate of 89 beats/minute for an infant may indicate bradycardia. Digoxin can further lower the heart rate, leading to potential adverse effects like arrhythmias. Therefore, withholding the medication and contacting the healthcare provider is crucial to ensure the safety of the infant.
Choice B is incorrect because administering digoxin without addressing the elevated pulse rate can be dangerous. Choice C is incorrect as assessing respiratory rate does not address the immediate concern of the elevated pulse rate. Choice D is also incorrect as waiting and giving half of the dosage may further exacerbate the situation.