A client recovering from cardiac surgery experiences a dysrhythmia, noted on the telemetry monitor. Which assessment finding is most likely to have contributed to the development of the dysrhythmia?

Reference Range:

Total Calcium [8.4 to 10.6 mg/dL (2.10 to 2.50 mmol/L)]

Sodium [136 to 145 mEq/L (136 to 145 mmol/L)]

Potassium (K+) [3.5 to 5.0 mEq/L (3.5 to 5.0 mmol/L)]

Calcium level 7.2 mg/dL (1.8 mmol/L).

Potassium level 3.8 mg/dl. (3.8 mmol)

Sodium level 140 mEq/L (140mmol/L).

Oxygen saturation level 97%.

Answer and Explanation

The Correct Answer is A

A.   This calcium level is below the normal reference range (8.4 to 10.6 mg/dL or 2.10 to 2.50 mmol/L), indicating hypocalcemia. Calcium plays a crucial role in cardiac muscle contraction and electrical conduction. Low calcium levels can lead to various cardiac dysrhythmias, including prolonged QT intervals and increased risk of ventricular arrhythmias.

B.   This potassium level falls within the normal range (3.5 to 5.0 mEq/L or 3.5 to 5.0 mmol/L). Potassium is essential for maintaining normal cardiac rhythm, but a level of 3.8 mg/dL is not abnormal and, therefore, is less likely to be the cause of a dysrhythmia compared to abnormal levels.
C.   This sodium level is within the normal reference range (136 to 145 mEq/L or 136 to 145 mmol/L). Sodium levels typically do not directly cause dysrhythmias unless they are extremely high or low, which is not the case here. Thus, a sodium level of 140 mEq/L is not likely to be the primary contributor to the dysrhythmia.
D.   This oxygen saturation level is considered normal (95% to 100%). While oxygenation is critical for overall heart function and can influence cardiac health, a saturation level of 97% is not likely to be a direct cause of a dysrhythmia, especially if it falls within the normal range.

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Correct Answer is B

Explanation

A. Increasing oxygen flow might seem like an immediate response, but it's crucial to be cautious with oxygen therapy in COPD patients. They often have a chronic CO2 retention issue, and excessive oxygen can sometimes reduce their drive to breathe, potentially worsening their condition. The increase in oxygen should be based on specific clinical guidelines and patient response, rather than an automatic increase.
B. Obtaining a stat arterial blood gas (ABG) is an important diagnostic step to evaluate the client’s oxygenation, ventilation, and acid-base status. This can provide critical information on the severity of the dyspnea and guide further treatment. It’s an essential action, particularly in acute dyspnea, as it helps in understanding the underlying cause and tailoring appropriate interventions.
C. The client is already in a high-Fowler’s position, which is optimal for improving lung expansion and easing dyspnea. Lowering the bed to a semi-Fowler’s position might not provide additional relief and could potentially worsen the client’s dyspnea. High-Fowler's position is generally preferred for severe dyspnea as it maximizes lung expansion and facilitates breathing.
D. Pursed-lip breathing is a helpful technique for managing dyspnea in COPD patients. It helps to prolong exhalation, reduce airway collapse, and improve gas exchange. This technique can provide immediate relief by helping the client control their breathing and reduce feelings of breathlessness.

A. Neutrophil count. B. C-reactive protein level. C. Platelet count. D. Serum potassium and sodium levels.

Correct Answer is B

Explanation

A. While neutrophils are involved in the immune response and wound healing, they are more indicative of an acute infection. An increased wound size suggests a worsening chronic condition rather than an acute infection.
B. C-reactive protein (CRP) is a sensitive marker of inflammation. An increase in CRP often accompanies worsening inflammation, such as an increase in wound size. Evaluating CRP levels would provide valuable information about the overall inflammatory state of the client.
C. Platelets are involved in blood clotting and wound healing, but they are not directly related to the overall inflammatory process or wound size.
D. These electrolytes are important for overall health, but they are not directly related to wound healing or inflammation.

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Explanation

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