Nokea
The nurse notes this cardiac rhythm on the cardiac monitor (refer to figure). What should the nurse interpret that the client is experiencing?
- A. Atrial fibrillation
- B. Sinus bradycardia
- C. Ventricular fibrillation (VF)
- D. Premature ventricular contractions (PVCs)
Correct Answer: D
Rationale: PVCs are abnormal ectopic beats (occurring in otherwise normal sinus rhythm) originating in the ventricles. They are characterized by an absence of P waves, wide and bizarre QRS complexes, and a compensatory pause that follows the ectopy. In atrial fibrillation, no definitive P wave usually can be observed; only fibrillatory waves before each QRS complex are observed. In sinus bradycardia, atrial and ventricular rhythms are regular, and the rates are less than 60 beats per minute. In ventricular fibrillation, impulses from many irritable foci in the ventricles fire in a totally disorganized manner, which appears as a chaotic rapid rhythm in which the ventricles quiver.
You may also like to solve these questions
A client has been diagnosed with left tension pneumothorax. Which finding observed by the nurse indicates that the pneumothorax is rapidly worsening? Select all that apply.
- A. Hypertension
- B. Flat neck veins
- C. Increased cyanosis
- D. Tracheal deviation to the right
- E. Diminished breath sounds on the left
- F. Observable asymmetry of the thorax
Correct Answer: C,D,E,F
Rationale: A tension pneumothorax is characterized by distended neck veins, displaced point of maximal impulse (PMI), tracheal deviation to the unaffected side, asymmetry of the thorax, decreased to absent breath sounds on the affected side, worsening cyanosis, and worsening dyspnea. The increased intrathoracic pressure causes the blood pressure to fall, not rise.
The nurse monitors a client prescribed a thiazide diuretic for which clinical manifestations of hypokalemia? Select all that apply.
- A. Muscle twitches
- B. Deep tendon hyporeflexia
- C. Prominent U wave on ECG
- D. General skeletal muscle weakness
- E. Hypoactive to absent bowel sounds
- F. Tall T waves on electrocardiogram (ECG)
Correct Answer: B,C,D,E
Rationale: Hypokalemia is a serum potassium level less than 3.5 mEq/L. Clinical manifestations include ECG abnormalities such as ST depression, inverted T wave, prominent U wave, and heart block. Other manifestations include deep tendon hyporeflexia, general skeletal muscle weakness, decreased bowel motility and hypoactive to absent bowel sounds, shallow ineffective respirations and diminished breath sounds, polyuria, decreased ability to concentrate urine, and decreased urine specific gravity. Tall T waves and muscle twitches are manifestations of hyperkalemia.
A pregnant client tells the nurse that she felt wetness on her peripad and found some clear fluid. The nurse inspects the perineum and notes the presence of the umbilical cord. What is the immediate nursing action?
- A. Monitor the fetal heart rate.
- B. Notify the primary health care provider.
- C. Transfer the client to the delivery room.
- D. Place the client in the Trendelenburg position.
Correct Answer: D
Rationale: On inspection of the perineum, if the umbilical cord is noted, the nurse immediately places the client in the Trendelenburg position while gently holding the presenting part upward to relieve the cord compression. This position is maintained and the primary health care provider is notified. The fetal heart rate also needs to be monitored to assess for fetal distress. The client is transferred to the delivery room when prescribed by the primary health care provider.
A client hospitalized with a diagnosis of thrombophlebitis is being treated with heparin infusion therapy. About 24 hours after the infusion has begun, the nurse notes that the client's partial thromboplastin time (PTT) is 65 seconds with a control of 30 seconds. What nursing action should the nurse implement?
- A. Discontinue the heparin infusion.
- B. Prepare to administer protamine sulfate.
- C. Notify the primary health care provider of the laboratory results.
- D. Include in report that the client is adequately anticoagulated.
Correct Answer: D
Rationale: The effectiveness of heparin therapy is monitored by the results of the PTT. Desired range for therapeutic anticoagulation is 1.5 to 2.5 times the control. A PTT of 65 seconds is within the therapeutic range. Therefore, options 1, 2, and 3 are incorrect actions.
A low dose of ondansetron is prescribed for a client receiving chemotherapy. The nurse anticipates that the primary health care provider will prescribe the medication by which route?
- A. Oral
- B. Intranasal
- C. Intravenous
- D. Subcutaneous
Correct Answer: C
Rationale: Ondansetron is an antiemetic used to control nausea, vomiting, and motion sickness. It is available for administration by the oral, intramuscular (IM), or intravenous (IV) routes. The IV route is the route used when relief of nausea is needed in the client receiving chemotherapy. The IM route may be used when the medication is used as an adjunct to anesthesia. Option 1 should not be used in clients who are nauseated. Options 2 and 4 are not routes of administration of this medication.