A 22-year-old dialysis patient presents to the ER with chest pain and palpitations. Laboratory tests reveal a Potassium (K+) level of 7.0 mEq/L. Which electrolyte imbalance is the patient suffering from?
Hypercalcemia
Hyperkalemia
Hypokalemia
Hyponatremia
The Correct Answer is B
B. It occurs when there is an abnormally high concentration of potassium in the bloodstream, typically above 5.0 mEq/L. Symptoms of hyperkalemia can include chest pain, palpitations, muscle weakness, and potentially life-threatening cardiac arrhythmias.
A. Hypercalcemia refers to elevated levels of calcium in the blood, not potassium.
C. Hypokalemia is the opposite condition where there is a lower-than-normal level of potassium in the blood.
D Hyponatremia refers to a low sodium level in the blood.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
D. A 90° angle (perpendicular to the skin surface) is typically used for IM injections into muscles where the needle needs to penetrate deeply into the muscle tissue.
A. 60° angle is commonly used for IM injections in the deltoid muscle or thigh. However, it may not be optimal for the ventrogluteal site, which typically requires a different approach due to its deeper location and muscle structure.
B. A 45° angle is typically used for subcutaneous injections, where the needle is inserted into the fatty layer just below the skin surface.
C. This angle is steeper than 60° and is sometimes used for IM injections into muscles with thicker tissue or larger muscle mass.
Correct Answer is C
Explanation
C. Hourly monitoring of the IV site may be necessary in situations where the patient's clinical condition requires close observation, such as when administering certain medications that can cause irritation or when rapid changes in fluid status are expected.
A. Checking the IV site every 5 hours may not be frequent enough, especially for patients who require close monitoring due to potential complications such as infiltration, phlebitis, or dislodgement of the IV catheter.
B. Correct, but it depends on the shift length. In many clinical settings, nurses typically assess the IV site once per shift to ensure proper functioning and assess for any signs of complications. However, the length of the shift can vary, and in some cases, more frequent monitoring may be necessary, especially if the patient's condition requires it.
D. Checking the IV site only once a day is generally insufficient, as it does not provide timely assessment and intervention for potential IV complications that can occur more frequently.
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