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Hypokalemia appearance on EKG Answer - - U waves
- inverted T waves
- depressed ST segment
Potassium chloride intravenously is prescribed for a client with heart failure
experiencing hypokalemia. Which actions should the nurse take to plan for
preparation and administration of the potassium?
Select all that apply.
1. Obtain an intravenous (IV) infusion pump.
2. Monitor urine output during administration.
3. Prepare the medication for bolus administration.
4. Monitor the IV site for signs of infiltration or phlebitis.
5. Ensure that the medication is diluted in the appropriate volume of fluid.
6. Ensure that the bag is labeled so that it reads the volume of potassium in the
solution. Answer - 1. Obtain an intravenous (IV) infusion pump.
2. Monitor urine output during administration.
4. Monitor the IV site for signs of infiltration or phlebitis.
5. Ensure that the medication is diluted in the appropriate volume of fluid.
6. Ensure that the bag is labeled so that it reads the volume of potassium in the
solution.
,Potassium chloride administered intravenously must always be diluted in IV
fluid and infused via an infusion pump. Potassium chloride is never given by
bolus (IV push). Giving potassium chloride by IV push can result in cardiac
arrest. The nurse should ensure that the potassium is diluted in the appropriate
amount of diluent or fluid. The IV bag containing the potassium chloride should
always be labeled with the volume of potassium it contains. The IV site is
monitored closely, because potassium chloride is irritating to the veins and
there is risk of phlebitis. In addition, the nurse should monitor for infiltration.
The nurse monitors urinary output during administration and contacts the
primary health care provider if the urinary output is less than 30 mL/hr.
The nurse is assessing a client with a lactose intolerance disorder for a
suspected diagnosis of hypocalcemia. Which clinical manifestation would the
nurse expect to note in the client?
1. Twitching
2. Hypoactive bowel sounds
3. Negative Trousseau's sign
4. Hypoactive deep tendon reflexes Answer - 1. Twitching
: A client with lactose intolerance is at risk for developing hypocalcemia,
because food products that contain calcium also contain lactose. The normal
serum calcium level is 9 to 10.5 mg/dL (2.25 to 2.75 mmol/L). A serum calcium
level lower than 9 mg/dL (2.25 mmol/L) indicates hypocalcemia. Signs of
hypocalcemia include paresthesias followed by numbness, hyperactive deep
tendon reflexes, and a 267 positive Trousseau's or Chvostek's sign. Additional
signs of hypocalcemia include increased neuromuscular excitability, muscle
cramps, twitching, tetany, seizures, irritability, and anxiety. Gastrointestinal
symptoms include increased gastric motility, hyperactive bowel sounds,
abdominal cramping, and diarrhea.
, . The nurse is caring for a client with Crohn's disease who has a calcium level of
8 mg/dL (2 mmol/L). Which patterns would the nurse watch for on the
electrocardiogram? Select all that apply.
1. U waves
2. Widened T wave
3. Prominent U wave
4. Prolonged QT interval
5. Prolonged ST segment Answer - 4. Prolonged QT interval
5. Prolonged ST segment
A client with Crohn's disease is at risk for hypocalcemia. The normal serum
calcium level is 9 to 10.5 mg/dL (2.25 to 2.75 mmol/L). A serum calcium level
lower than 9 mg/dL (2.25 mmol/L) indicates hypocalcemia.
Electrocardiographic changes that occur in a client with hypocalcemia include a
prolonged QT interval and prolonged ST segment. A shortened ST segment and
a widened T wave occur with hypercalcemia. ST depression and prominent U
waves occur with hypokalemia.
The nurse reviews the electrolyte results of a client with chronic kidney disease
and notes that the potassium level is 5.7 mEq/L (5.7 mmol/L). Which patterns
would the nurse watch for on the cardiac monitor as a result of the laboratory
value? Select all that apply.
1. ST depression
2. Prominent U wave
3. Tall peaked T waves
4. Prolonged ST segment
5. Widened QRS complexes Answer - 3. Tall peaked T waves
5. Widened QRS complexes