A nurse is reviewing laboratory data on a client who is recovering from surgery.
Drag 1 condition and 1 client finding to fill in each blank in the following sentence.
The client is at risk for developing due to
The Correct Answer is {"dropdown-group-1":"E","dropdown-group-2":"C"}
Potassium Levels: The postoperative potassium level for the client is 3.0 mEq/L, which falls below the normal range of 3.5 to 5 mEq/L. Potassium is a critical electrolyte necessary for the proper functioning of cardiac muscles. It plays a pivotal role in maintaining the electrical conductivity of the heart. Hypokalemia, or low potassium levels, can disrupt this electrical conductivity, leading to abnormal heart rhythms or arrhythmias. Arrhythmias can manifest as palpitations, irregular heartbeats, or more severe cardiac events, which can be life-threatening if not addressed promptly.
Importance of Potassium in Cardiac Function: Potassium is essential for the repolarization phase of the cardiac action potential. It helps in the return of the cell to its resting state after each heartbeat. A deficiency in potassium disrupts this balance, increasing the risk of erratic heartbeats and arrhythmias. Low potassium can prolong the QT interval on an electrocardiogram (ECG), which is a marker for potential arrhythmic events.
Clinical Implications: For a postoperative client, maintaining electrolyte balance is crucial. Surgery and anesthesia can affect fluid and electrolyte levels, making it essential to monitor and correct any imbalances. The decrease in potassium levels from 3.5 mEq/L preoperatively to 3.0 mEq/L postoperatively highlights a trend that must be addressed to prevent complications such as arrhythmias.
Preventative Measures: To mitigate the risk of arrhythmias, the healthcare team should consider interventions to correct the hypokalemia. This may include administering potassium supplements orally or intravenously, depending on the severity and clinical context. Continuous cardiac monitoring may also be warranted to detect and manage any emerging arrhythmic events promptly.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Severity
In the PQRST mnemonic for pain assessment, "S" stands for Severity. When the nurse asks the client to rate the pain on a scale of 0 to 10, they are assessing the severity of the pain. This helps the nurse understand the intensity of the client's pain experience and provides a baseline for evaluating the effectiveness of pain management interventions.
B. Precipitating cause
This component relates to factors that exacerbate or alleviate the pain and is represented by the "P" in the PQRST mnemonic. Asking about activities or events that preceded the onset of pain helps identify potential triggers or causes.
C. Region
The "R" in PQRST represents Region, referring to the specific location or area where the client experiences pain. Assessing the region helps localize the source of pain and guide further diagnostic evaluations or interventions.
D. Quality
Quality, represented by the "Q" in PQRST, refers to the characteristics or nature of the pain, such as sharp, dull, throbbing, or burning. Understanding the quality of pain provides additional information about its underlying cause and can aid in selecting appropriate treatment strategies.
Correct Answer is C
Explanation
A) Lactated Ringer's:
Lactated Ringer's solution is an isotonic crystalloid solution that contains electrolytes similar to those found in plasma. It is commonly used for fluid resuscitation and maintenance therapy but is not typically used for treating hypernatremia, as it contains sodium chloride and could exacerbate the client's condition.
B) Dextrose 10% in water:
Dextrose 10% in water is a hypertonic solution primarily used to provide calories and treat hypoglycemia. It does not address the underlying electrolyte imbalance in hypernatremia.
C) 0.45% sodium chloride:
0.45% sodium chloride, also known as half-normal saline, is a hypotonic solution used to treat hypernatremia by diluting the excess sodium in the bloodstream. It provides free water to rehydrate cells without adding excessive sodium. This solution is appropriate for clients with hypernatremia who require IV fluid therapy.
D) Dextrose 5% in 0.9% sodium chloride:
Dextrose 5% in 0.9% sodium chloride, also known as D5NS, is a hypertonic solution containing both dextrose and sodium chloride. While it provides water and calories, the sodium content may exacerbate hypernatremia rather than correct it. Therefore, it is not the most appropriate choice for a client with hypernatremia.
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