The nurse is caring for a client with a heart rate of 48. His blood pressure is 120/80. Which finding will help the nurse determine the cause of the client's bradycardia?
The client has a fever.
The client has possible hemorrhage or bleeding.
The client has chronic obstructive pulmonary disease (COPD).
The client has calcium channel blocker medicate prescribed.
The Correct Answer is D
A. Fever can cause tachycardia (increased heart rate) rather than bradycardia. It is not typically associated with slowing of the heart rate unless there are other complicating factors such as severe infection or medication side effects.
B. Significant blood loss can lead to hypovolemia (low blood volume), which can result in bradycardia as a compensatory mechanism to maintain blood pressure. However, the blood pressure in this scenario is
normal (120/80), which makes severe hemorrhage less likely unless compensated by fluid resuscitation or other factors.
C. COPD can cause chronic hypoxia and respiratory acidosis, which can lead to chronic respiratory compensation and potentially bradycardia. However, COPD alone is less likely to cause bradycardia in the absence of severe exacerbation or other complicating factors.
D. Calcium channel blockers (CCBs) are medications commonly prescribed for conditions such as hypertension, angina, and arrhythmias. They work by blocking calcium channels in cardiac and smooth muscle cells, resulting in decreased heart rate and vasodilation. Bradycardia is a known side effect of CCBs, especially when taken in excess or in combination with other medications that affect heart rate.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. This statement suggests that the client may not understand the purpose or procedure of the CT scan. CT scans typically do not require the client to drink excessive fluids afterward. However, hydration might be encouraged if contrast dye was used to help eliminate it from the body. Education is needed to clarify post-procedure instructions.
B. This statement indicates a misconception about the procedure. CT scans do not usually require anesthesia unless it's a complex situation, such as a young child or someone with severe claustrophobia. It's essential to educate the client about what to expect during the CT scan to reduce anxiety and ensure cooperation during the procedure.
C. This statement shows awareness of potential allergies to contrast dye, which often contains iodine. It indicates that the client understands the importance of disclosing allergies to the healthcare team before the procedure. While this is generally a positive sign of awareness, further education may still be needed to ensure complete understanding of allergy management.
D. This statement demonstrates understanding of pre-procedure instructions, which often include fasting or specific dietary restrictions. It suggests that the client understands the importance of these restrictions to ensure accurate test results and safety during the CT scan.
Correct Answer is C
Explanation
A. Metabolic acidosis is characterized by a decrease in bicarbonate or an increase in acids, which can be caused by conditions like kidney failure or diabetic ketoacidosis, but it is not typically associated with numbness and tingling.
B. Respiratory alkalosis is characterized by a high pH (>7.45) and a decreased PaCO2 (<35 mm Hg). It typically results from hyperventilation, which leads to excessive elimination of CO2 and subsequent alkalosis. This condition is less likely to occur in gastroenteritis unless there are other complicating factors such as anxiety or pain causing increased respiratory rate.
C. In the context of gastroenteritis, where there may be a loss of stomach acids through vomiting or diarrhea, the most likely acid-base imbalance would be metabolic alkalosis.
D. Respiratory acidosis is characterized by a low pH and an elevated PaCO2 (>45 mm Hg). It results from hypoventilation, leading to retention of CO2 and subsequent acidosis. Respiratory acidosis would not typically present with numbness and tingling in the extremities in the context of gastroenteritis.
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