Patient MK is admited with Atrial Fibrillation an irregular heart rhythm. She is also complaining of muscle cramps to her legs and that she started a new diuretic last week. What lab value are you most likely to find on her Complete Metabolic Panel?
Mg2 – 20 mEq/L
Na+ - 123 mEq/L
Ca2 – 10.0 mg/dl
K+ - - 3.1 mEq/L
The Correct Answer is D
Atrial fibrillation is a common arrhythmia, and diuretics are often used in the management of patients with this condition to help control fluid balance. However, diuretics can cause electrolyte imbalances, especially hypokalaemia (low potassium levels), which can lead to muscle cramps and other complications.
A Complete Metabolic Panel (CMP) is a blood test that measures various electrolytes, glucose, and other important components. Among the options given, the most likely lab value to be abnormal in Patient MK's case is a low level of potassium (K+), which is consistent with her symptoms and diuretic use. Option d, K+ -
-
- mEq/L, is the correct option as it represents a low level of potassium, which is defined as a value less than 3.5 mEq/L.
Option a, Mg2 – 20 mEq/L, represents high magnesium levels, which are not typically associated with diuretic use or muscle cramps. Option b, Na+ - 123 mEq/L, represents low sodium levels, which are less likely to occur with diuretic use, and are typically associated with other conditions. Option c, Ca2 – 10.0 mg/dl, represents normal calcium levels and is not typically affected by diuretic use.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The left ventricle is responsible for pumping oxygen-rich blood from the heart to the rest of the body. In heart failure, the left ventricle is weakened and unable to pump blood efficiently, resulting in reduced blood flow to the body's tissues. This can lead to symptoms such as fatigue, shortness of breath, and swelling in the legs and feet. Treatment for heart failure may include medications, lifestyle changes, and in some cases, surgical interventions such as a heart transplant.
Correct Answer is A
Explanation
Pulse oximetry is a non-invasive method of monitoring the oxygen saturation level in the blood. A normal range for oxygen saturation is between 95% and 100%. An oxygen saturation level of 89% indicates hypoxemia, which is a serious condition that can lead to tissue damage, organ failure, and even death if left untreated.
Therefore, the priority nursing action is to perform a respiratory assessment to determine the cause of the hypoxemia. This should include assessing the client's airway patency, breathing patern, lung sounds, and oxygen therapy if the client is already receiving it. The nurse should also observe for any signs of respiratory distress such as cyanosis, accessory muscle use, or difficulty breathing.
While it is important to document hypoxemia and report it to the healthcare provider, the priority at this time is to assess and intervene promptly to prevent further deterioration of the client's condition. Checking the placement of the pulse oximeter may be necessary if the reading is unreliable, but it is not the priority in this scenario.
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