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Which acid-base disturbances commonly occurs with the hyperventilation and impaired gas exchange seen in severe exacerbation of asthma?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct Answer: D
Rationale: The correct answer is D: Respiratory alkalosis. Hyperventilation in severe asthma exacerbation leads to excessive removal of CO2, causing a decrease in carbonic acid levels, resulting in respiratory alkalosis. Metabolic acidosis (A) is not typically associated with hyperventilation. Metabolic alkalosis (B) is caused by excessive loss of acid or gain of bicarbonate, not by hyperventilation. Respiratory acidosis (C) is characterized by an increase in CO2 levels due to inadequate ventilation, which is the opposite of what occurs in severe asthma exacerbation.
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The nurse is caring for a patient who sustained a head injury and is unresponsive to painful stimuli. Which intervention is most appropriate while bathaibnirgb. ctohme/ tpesatt ient?
- A. Ask a family member to help you bathe the patient, and discuss the family structure with the family member during the procedure .
- B. Because the patient is unconscious, complete care as q uickly and quietly as possible.
- C. Inform the patient of the day and time, and what kind o f care you are providing.
- D. Turn the television on to the evening news so that you and the patient can be updated to current events.
Correct Answer: B
Rationale: The correct answer is B: Because the patient is unconscious, complete care as quickly and quietly as possible. This is the most appropriate intervention as it prioritizes the patient's comfort and minimizes unnecessary stimulation. Performing care quickly reduces the time the patient is exposed to potentially uncomfortable procedures. Being quiet also helps create a calming environment for the patient, which is important for someone who is unresponsive.
Explanation for other choices:
A: Asking a family member to help and discussing family structure is not appropriate as it can be intrusive and may not be relevant or beneficial to the patient's care.
C: Informing the patient of the day and time is unnecessary as the patient is unresponsive. Providing care is more crucial than updating the patient.
D: Turning on the television is inappropriate as it introduces unnecessary noise and distraction, which can be overwhelming for an unresponsive patient.
The nurse is caring for a patient whose ventilator settings i nclude 15 cm H O of positive end-expiratory pressure (PEEP). The nurse understands that although beneficial, PEEP may result in what possible problem?
- A. Fluid overload secondary to decreased venous return.
- B. High cardiac index secondary to more efficient ventric ular function.
- C. Hypoxemia secondary to prolonged positive pressure a t expiration.
- D. Low cardiac output secondary to increased intrathoracic pressure
Correct Answer: D
Rationale: Rationale for Correct Answer (D - Low cardiac output secondary to increased intrathoracic pressure):
1. PEEP increases intrathoracic pressure, which can impede venous return to the heart.
2. Impaired venous return reduces preload, leading to decreased cardiac output.
3. Decreased cardiac output can result in inadequate tissue perfusion and oxygenation.
4. Therefore, PEEP may cause low cardiac output due to increased intrathoracic pressure.
Summary of Incorrect Choices:
A. Fluid overload is not directly related to PEEP but more to fluid administration or kidney function.
B. High cardiac index is unlikely as PEEP can decrease cardiac output.
C. Hypoxemia is not a direct result of PEEP but may occur due to other factors like inadequate ventilation or oxygenation settings.
The nurse is concerned that the patient will pull out the en dotracheal tube. As part of the nursing management, the nurse should obtain an order for what intervention?
- A. A Posey-type vest
- B. A higher dosage of lorazepam
- C. Propofol
- D. Soft wrist restraints
Correct Answer: A
Rationale: The correct answer is A. A Posey-type vest is a restraint designed to prevent patients from pulling out medical devices like endotracheal tubes, ensuring their safety. It is a less restrictive option compared to wrist restraints and sedatives (B and C), which can have adverse effects and may not directly address the concern of tube removal. Using a Posey-type vest promotes patient autonomy by allowing some movement while still providing the necessary protection.
What strategies are appropriate for preventing deep vein tharboirbm.cbomo/steisst (DVT) and pulmonary embolus (PE) in an at-risk patient? (Select all that apply.) WWW .THENURSINGMASTERY.COM
- A. Graduated compression stockings
- B. Heparin or low–molecular weight heparin
- C. Sequential compression devices
- D. Strict bed rest
Correct Answer: A
Rationale: The correct answer is A: Graduated compression stockings. These stockings help prevent blood from pooling in the legs, reducing the risk of DVT and PE. They improve circulation and reduce venous stasis. Option B, heparin, is used for treatment, not prevention. Option C, sequential compression devices, help prevent DVT but are not as effective as compression stockings. Option D, strict bed rest, can actually increase the risk of DVT by reducing blood flow.
Which nursing actions for the care of a dying patient can the nurse delegate to a licensed practical/vocational nurse (LPN/LVN) (select all that apply)?
- A. Provide postmortem care to the patient.
- B. Encourage the family members to talk with and reassure the patient.
- C. Determine how frequently physical assessments are needed for the patient.
- D. Teach family members about commonly occurring signs of approaching death.
Correct Answer: A
Rationale: The correct answer is A because providing postmortem care to a dying patient is a task that can be safely delegated to an LPN/LVN. This includes tasks such as preparing the body, cleaning, and positioning after death. LPNs/LVNs are trained and competent in performing these duties under the supervision of a registered nurse or physician.
Choices B, C, and D are incorrect because they involve critical thinking, assessment, and teaching skills that are typically within the scope of practice of a registered nurse. Encouraging family members to talk with the patient, determining assessment frequency, and educating about signs of approaching death require a higher level of nursing judgment and expertise, which is beyond the scope of an LPN/LVN's role.