Nokea
Claudication is a well-known effect of peripheral vascular disease. Which of the following facts about claudication is correct? Select the one that doesn't apply:
- A. It results when oxygen demand is greater than oxygen supply.
- B. It is characterized by pain that often occurs during rest.
- C. It is a result of tissue hypoxia.
- D. It is characterized by cramping and weakness.
Correct Answer: D
Rationale: Claudication is a symptom of peripheral vascular disease where there is an inadequate supply of oxygen to the muscles due to reduced blood flow. This mismatch between oxygen demand and supply leads to tissue hypoxia, resulting in cramping, weakness, and discomfort. Option D correctly states that claudication is characterized by cramping and weakness, making it the correct answer. Options A, B, and C are incorrect. Claudication occurs when oxygen demand exceeds supply, not the other way around as stated in Option A. Pain in claudication typically occurs with activity, not at rest as mentioned in Option B. While tissue hypoxia is a consequence of claudication, it is not the primary cause, making Option C incorrect.
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A patient who has a history of chronic obstructive pulmonary disease (COPD) was hospitalized for increasing shortness of breath and chronic hypoxemia (SaO2 levels of 89% to 90%). In planning for discharge, which action by the nurse will be most effective in improving compliance with discharge teaching?
- A. Start giving the patient discharge teaching on the day of discharge
- B. Have the patient repeat the instructions immediately after teaching
- C. Accomplish the patient teaching just before the scheduled discharge
- D. Arrange for the patient's caregiver to be present during the teaching
Correct Answer: D
Rationale: Hypoxemia interferes with the patient's ability to learn and retain information, so having the patient's caregiver present will increase the likelihood that discharge instructions will be followed. Having the patient repeat the instructions will indicate that the information is understood at the time, but it does not guarantee retention of the information. Giving discharge instructions just before discharge is not ideal as the patient is likely to be distracted and anxious at that time. Teaching the patient about discharge on the day of admission is not recommended because the patient may be more hypoxemic and anxious than usual, making it difficult for them to absorb and retain the information effectively. Therefore, arranging for the patient's caregiver to be present during the teaching session is the best option to ensure proper compliance and understanding of the discharge instructions.
The nurse monitors a patient after chest tube placement for a hemopneumothorax. The nurse is most concerned if which assessment finding is observed?
- A. A large air leak in the water-seal chamber
- B. 400 mL of blood in the collection chamber
- C. Complaint of pain with each deep inspiration
- D. Subcutaneous emphysema at the insertion site
Correct Answer: B
Rationale: The nurse should be most concerned if 400 mL of blood is observed in the collection chamber as it may indicate the patient is at risk of developing hypovolemic shock. A large air leak in the water-seal chamber is expected initially after chest tube placement for a pneumothorax. While pain with deep inspiration should be treated, it is not as urgent as the risk of continued hemorrhage. Subcutaneous emphysema is not uncommon in a patient with pneumothorax and is usually harmless. However, a large amount of blood in the collection chamber is a more critical finding that requires immediate attention to prevent potential complications.
A patient with severe mitral regurgitation and decreased cardiac output is being cared for by a nurse. The nurse assesses the patient for mental status changes. What is the rationale for this intervention?
- A. Decreased cardiac output can cause hypoxia to the brain
- B. Mental status changes may be a side effect of the patient's medication
- C. Mitral regurgitation is a complication associated with some neurological disorders
- D. The patient may be confused about his diagnosis
Correct Answer: A
Rationale: When caring for a patient with severe mitral regurgitation and decreased cardiac output, assessing for mental status changes is crucial. Decreased cardiac output can lead to inadequate perfusion and oxygenation of vital organs, including the brain, resulting in hypoxia. This hypoxia can manifest as mental status changes such as confusion, restlessness, or lethargy. Therefore, monitoring mental status helps in identifying potential hypoxic states and guiding appropriate interventions. The other options are incorrect as they do not directly correlate decreased cardiac output with potential hypoxia-induced mental status changes.
The nurse prepares a patient with a left-sided pleural effusion for a thoracentesis. How should the nurse position the patient?
- A. Supine with the head of the bed elevated 30 degrees
- B. In a high-Fowler's position with the left arm extended
- C. On the right side with the left arm extended above the head
- D. Sitting upright with the arms supported on an overbed table
Correct Answer: D
Rationale: The correct position for a patient with a left-sided pleural effusion undergoing thoracentesis is sitting upright with the arms supported on an overbed table. This position helps increase lung expansion, allows fluid to collect at the lung bases, and expands the intercostal space making access to the pleural space easier. Placing the patient supine, in a high-Fowler's position, or on the right side with the left arm extended above the head could increase the work of breathing for the patient and complicate the thoracentesis procedure for the healthcare provider.
The nurse admits a patient who has a diagnosis of an acute asthma attack. Which statement indicates that the patient may need teaching regarding medication use?
- A. I have not had any acute asthma attacks during the last year.
- B. I became short of breath an hour before coming to the hospital.
- C. I've been taking Tylenol 650 mg every 6 hours for chest-wall pain.
- D. I've been using my albuterol inhaler more frequently over the last 4 days.
Correct Answer: D
Rationale: The correct answer is 'I've been using my albuterol inhaler more frequently over the last 4 days.' This statement indicates that the patient may need teaching regarding medication use because an increased need for a rapid-acting bronchodilator suggests an exacerbation of asthma. The patient should be educated on recognizing worsening symptoms and the appropriate actions to take. Choices A, B, and C do not directly relate to asthma exacerbation or the need for medication teaching, making them incorrect. Choice A reflects a lack of recent acute asthma attacks, while choice B describes shortness of breath unrelated to medication use. Choice C mentions Tylenol use for chest-wall pain, which is not indicative of asthma exacerbation or medication teaching needs.