Nokea
A client is scheduled to have a percutaneous transluminal coronary angioplasty (PTCA). What information about the balloon-tipped catheter should nurse plan to include when providing client education concerning the procedure?
- A. A mesh-like device within the catheter will be inflated causing it to spring open.
- B. The catheter will be used to compress the plaque against the coronary blood vessel wall.
- C. The catheter will cut away the plaque from the coronary vessel wall using an embedded blade.
- D. The catheter will be positioned in a coronary artery to take pressure measurements in the vessel.
Correct Answer: B
Rationale: In PTCA, a balloon-tipped catheter is used to compress the plaque against the coronary blood vessel wall. Option 1 describes placement of a coronary stent, option 3 describes coronary atherectomy, and option 4 describes part of the process used in cardiac catheterization.
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While providing care to a client with a head injury, the nurse notes that a client exhibits this posture (refer to figure). What should the nurse document that the client is exhibiting?
- A. Flaccidity
- B. Decorticate posturing
- C. Decerebrate posturing
- D. Rigidity in the upper extremities
Correct Answer: B
Rationale: Decortication is abnormal posturing seen in the client with lesions that interrupt the corticospinal pathways. In this posturing, the client's arms, wrists, and fingers are flexed with internal rotation and plantar flexion of the feet and legs extended. Flaccidity indicates weak, soft, and flabby muscles that lack normal muscle tone. Decerebration is abnormal posturing and rigidity characterized by extension of the arms and legs, pronation of the arms, plantar flexion, and opisthotonos. Decerebration is usually associated with dysfunction in the brainstem area. Rigidity indicates hardness, stiffness, or inflexibility. Decerebrate posturing is associated with rigidity.
When caring for a client diagnosed with myasthenia gravis, the nurse should be alert for which manifestations of myasthenic crisis? Select all that apply.
- A. Bradycardia
- B. Increased diaphoresis
- C. Decreased lacrimation
- D. Bowel and bladder incontinence
- E. Absent cough and swallow reflex
- F. Sudden marked rise in blood pressure
Correct Answer: B,D,E,F
Rationale: Myasthenic crisis is caused by undermedication or can be precipitated by an infection or sudden withdrawal of anticholinesterase medications. It may also occur spontaneously. Clinical manifestations include increased diaphoresis, bowel and bladder incontinence, absent cough and swallow reflex, sudden marked rise in blood pressure because of hypoxia, increased heart rate, severe respiratory distress and cyanosis, increased secretions, increased lacrimation, restlessness, and dysarthria.
A client is admitted to the hospital with a diagnosis of Cushing's syndrome. The nurse monitors the client for which problem that is likely to occur with this diagnosis?
- A. Hypovolemia
- B. Hypoglycemia
- C. Mood disturbances
- D. Deficient fluid volume
Correct Answer: C
Rationale: Cushing's syndrome is a metabolic disorder resulting from the chronic and excessive production of cortisol. When Cushing's syndrome develops, the normal function of the glucocorticoids becomes exaggerated and the classic picture of the syndrome emerges. This exaggerated physiological action can cause mood disturbances, including memory loss, poor concentration and cognition, euphoria, and depression. It can also cause persistent hyperglycemia along with sodium and water retention (hypernatremia), producing edema (hypervolemia; fluid volume excess), and hypertension.
The nurse providing diet teaching to a client experiencing heart failure instructs the client to avoid which food item?
- A. Sherbet
- B. Steak sauce
- C. Apple juice
- D. Leafy green vegetables
Correct Answer: B
Rationale: Steak sauce is high in sodium. Leafy green vegetables, any juice (except tomato or V8 brand vegetable), and sherbet are all low in sodium. Clients with heart failure should monitor sodium intake.
A client with significant flail chest has arterial blood gases (ABGs) that reveal a PaO2 of 68 and a PaCO2 of 51. Two hours ago the PaO2 was 82 and the PaCO2 was 44. Based on these changes, which item should the nurse assure easy access to in order to help ensure client safety?
- A. Intubation tray
- B. Injectable lidocaine
- C. Chest tube insertion set
- D. Portable chest x-ray machine
Correct Answer: A
Rationale: Flail chest occurs from a blunt trauma to the chest. The loose segment from the chest wall becomes paradoxical to the expansion and contraction of the rest of the chest wall. The client with flail chest has painful, rapid, shallow respirations while experiencing severe dyspnea. The laboratory results indicate worsening respiratory acidosis. The effort of breathing and the paradoxical chest movement have the net effect of producing hypoxia and hypercapnia. The client develops respiratory failure and requires intubation and mechanical ventilation, usually with positive end-expiratory pressure (PEEP); therefore, an intubation tray is necessary. None of the other options have a direct purpose with the client's current respiratory status.