Nokea
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.
You may also like to solve these questions
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.
When preparing to cool a patient who is to begin therapeutic hypothermia, which intervention will the nurse plan to do (select all that apply)?
- A. Assist with endotracheal intubation.
- B. Insert an indwelling urinary catheter.
- C. Begin continuous cardiac monitoring.
- D. Obtain an order to restrain the patient.
Correct Answer: C
Rationale: Rationale:
Continuous cardiac monitoring is crucial during therapeutic hypothermia to monitor the patient's cardiac rhythm and detect any arrhythmias promptly. This intervention allows for immediate intervention if any cardiac issues arise.
Explanation of other choices:
A: Assisting with endotracheal intubation may be necessary for airway management but is not directly related to cooling the patient for therapeutic hypothermia.
B: Inserting an indwelling urinary catheter may be needed for urine output monitoring but is not a priority intervention for cooling the patient.
D: Restraining the patient is unnecessary and not indicated for therapeutic hypothermia; it may cause unnecessary distress and should be avoided unless absolutely necessary for patient safety.
Which interventions can the nurse use to facilitate communication with patients and families who are in the process of making decisions regarding end- of-life care options? (Select all that apply.)
- A. Communication of uniform messages from all healthca re team members
- B. An integrated plan of care that is developed collaborat ively by the patient, family, and healthcare team
- C. Facilitation of continuity of care through accurate shift -to-shift and transfer reports
- D. Limitation of time for families to express feelings in order to control family grief
Correct Answer: A
Rationale: The correct answer is A: Communication of uniform messages from all healthcare team members. This intervention is crucial to ensure consistency in information provided to patients and families, reducing confusion and enhancing trust. When all team members convey the same messages, it helps in clarifying options and facilitating decision-making.
Choices B and C are incorrect as they focus on care planning and continuity, which are important but not specifically related to facilitating communication in end-of-life care decisions. Choice D is incorrect as it suggests limiting time for families to express feelings, which can hinder effective communication and support during such a sensitive time.
The nurse is caring for a postoperative patient in the critica l care unit. The physician has ordered patient-controlled analgesia (PCA) for the patient. The nurse understands what facts about the PCA? (Select all that apply.)
- A. It is a safe and effective method for administering anal gesia.
- B. It has potentially fewer side effects than other routes of analgesic administration.
- C. It is an ideal method to provide critically ill patients so me control over their treatment.
- D. It does not work well without family assistance
Correct Answer: A
Rationale: Step-by-step rationale for why Answer A is correct:
1. Patient-controlled analgesia (PCA) allows patients to self-administer pain medication within preset limits, promoting pain management.
2. PCA is considered safe and effective as it provides better pain control, reduces the risk of overdose, and allows for individualized dosing.
3. Healthcare providers can monitor and adjust the PCA settings as needed to ensure optimal pain relief.
4. Studies have shown that PCA is a preferred method for postoperative pain management due to its efficacy and safety profile.
5. Overall, PCA is a reliable and beneficial approach to analgesia administration in postoperative patients.
Summary of why other choices are incorrect:
B: While PCA may have fewer side effects compared to some routes, this is not a defining characteristic of PCA.
C: While patients do have some control over their treatment with PCA, the primary focus is on pain management rather than giving control to critically ill patients.
D: PCA can be used effectively without family
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.