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The nurse analyzed an electrocardiogram (ECG) strip (refer to figure) for a client demonstrating left-sided heart failure and interprets the ECG strip as which rhythm?
- A. Atrial fibrillation
- B. Sinus dysrhythmia
- C. Ventricular fibrillation
- D. Third-degree heart block
Correct Answer: A
Rationale: Atrial fibrillation is characterized by rapid, chaotic atrial depolarization. Ventricular rates may be less than 100 beats per minute (controlled) or greater than 100 beats per minute (uncontrolled). The ECG reveals chaotic or no identifiable P waves and an irregular ventricular rhythm. A sinus dysrhythmia has a normal P wave and PR interval and QRS complex. In ventricular fibrillation, there are no identifiable P waves, QRS complexes, or T waves.
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The nurse instructs a preoperative client about the proper use of an incentive spirometer. What result should the nurse use to determine that the client is using the incentive spirometer effectively?
- A. Cloudy sputum
- B. Shallow breathing
- C. Unilateral wheezing
- D. Productive coughing
Correct Answer: D
Rationale: Incentive spirometry helps reduce atelectasis, open airways, stimulate coughing, and help mobilize secretions for expectoration, via vital client participation in recovery. Cloudy sputum, shallow breathing, and wheezing indicate that the incentive spirometry is not effective because they point to infection, counterproductive depth of breathing, and bronchoconstriction, respectively.
The nurse is sending an arterial blood gas (ABG) specimen to the laboratory for analysis. What information should the nurse include on the laboratory requisition? Select all that apply.
- A. Ventilator settings
- B. A list of client allergies
- C. The client's temperature
- D. The date and time the specimen was drawn
- E. Any supplemental oxygen the client is receiving
- F. Extremity from which the specimen was obtained
Correct Answer: A,C,D,E
Rationale: An ABG requisition usually contains information about the date and time the specimen was drawn, the client's temperature, whether the specimen was drawn on room air or using supplemental oxygen, and the ventilator settings if the client is on a mechanical ventilator. The client's allergies and the extremity from which the specimen was drawn do not have a direct bearing on the laboratory results.
A client diagnosed with myxedema reports having experienced a lack of energy, cold intolerance, and puffiness around the eyes and face. The nurse plans care knowing that these clinical manifestations are caused by a lack of production of which hormones? Select all that apply.
- A. Thyroxine (T4)
- B. Prolactin (PRL)
- C. Triiodothyronine (T3)
- D. Growth hormone (GH)
- E. Luteinizing hormone (LH)
- F. Adrenocorticotropic hormone (ACTH)
Correct Answer: A,C
Rationale: Although all of these hormones originate from the anterior pituitary, only T3 and T4 are associated with the client's symptoms. Myxedema results from inadequate thyroid hormone levels (T3 and T4). Low levels of thyroid hormone result in an overall decrease in the basal metabolic rate, affecting virtually every body system and leading to weakness, fatigue, and a decrease in heat production. A decrease in LH results in the loss of secondary sex characteristics. A decrease in ACTH is seen in Addison's disease. PRL stimulates breast milk production by the mammary glands, and GH affects bone and soft tissue by promoting growth through protein anabolism and lipolysis.
The client is prescribed sotalol 80 mg orally twice daily. Which assessment finding indicates that the client is experiencing an adverse effect of the medication?
- A. Dry mouth
- B. Palpitations
- C. Diaphoresis
- D. Difficulty swallowing
Correct Answer: B
Rationale: Sotalol is a beta-adrenergic blocking agent that may be prescribed to treat chronic angina pectoris. Adverse effects include palpitations, bradycardia, an irregular heartbeat, difficulty breathing, signs of heart failure, and cold hands and feet. Gastrointestinal disturbances, anxiety and nervousness, and unusual tiredness and weakness can also occur. Options 1, 3, and 4 are not adverse effects of this medication.
The nurse in an ambulatory care clinic takes a client's blood pressure (BP) in the left arm; it is 200/118 mm Hg. Which action should the nurse implement next?
- A. Notify the primary health care provider.
- B. Inquire about the presence of kidney disorders.
- C. Check the client's blood pressure in the right arm.
- D. Recheck the pressure in the same arm within 30 seconds.
Correct Answer: C
Rationale: When a high BP reading is noted, the nurse takes the pressure in the opposite arm to see if the blood pressure is elevated in one extremity only. The nurse would also recheck the blood pressure in the same arm but would wait at least 2 minutes between readings. The nurse would inquire about the presence of kidney disorders that could contribute to the elevated blood pressure. The nurse would notify the primary health care provider because immediate treatment may be required, but this would not be done without obtaining verification of the elevation.