A client has a serum potassium level of 2.9 mEq/L. Which action prescribed by the health care provider should the nurse take first?

Ask the patient about home insulin doses

Administer IV potassium supplements

Place the patient on a cardiac monitor

Start an insulin infusion at 0.1 units/kg/h

Answer and Explanation

The Correct Answer is B

Choice A reason: This statement is false. Asking the patient about home insulin doses is not the action that the nurse should take first. Insulin is a hormone that lowers the blood glucose level and can also lower the blood potassium level by driving potassium into the cells. However, this is not the primary cause of hypokalemia, or low blood potassium level, which can be due to other factors such as diuretics, vomiting, diarrhea, or alkalosis.

Choice B reason: This statement is true. Administering IV potassium supplements is the action that the nurse should take first. Potassium is an electrolyte that is essential for the normal function of the heart, muscles, and nerves. Hypokalemia can cause cardiac arrhythmias, muscle weakness, and paralysis. IV potassium supplements can restore the blood potassium level and prevent life-threatening complications.

Choice C reason: This statement is false. Placing the patient on a cardiac monitor is not the action that the nurse should take first. A cardiac monitor is a device that records the electrical activity of the heart and can detect any abnormal rhythms or conduction problems. It is a useful tool for monitoring the patient's cardiac status, but it does not treat the underlying cause of hypokalemia.

Choice D reason: This statement is false. Starting an insulin infusion at 0.1 units/kg/h is not the action that the nurse should take first. Insulin infusion is a method of delivering insulin continuously through a pump or a catheter. It is used for patients with diabetes who need tight glucose control. It can also lower the blood potassium level by driving potassium into the cells. However, this is not t

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Correct Answer is C

Explanation

Choice A reason: This statement is false. A 12-month-old who is 2-days post-op cleft palate repair whose vital signs are within normal limits is not the priority for pain medication. This infant may have some pain from the surgery, but it is likely to be mild and manageable with non-pharmacological interventions, such as distraction, comfort, or oral care.

Choice B reason: This statement is false. A 6-month-old who is crying and becomes calm when held by a parent is not the priority for pain medication. This infant may have some pain from an unknown cause, but it is likely to be transient and responsive to non-pharmacological interventions, such as soothing, rocking, or cuddling.

Choice C reason: This statement is true. An 8-month-old with legs drawn to chest and a temperature of 39.5 degrees C is the priority for pain medication. This infant may have severe pain from an infection, such as appendicitis, meningitis, or urinary tract infection. This infant may also have signs of inflammation, such as fever, leukocytosis, or elevated C-reactive protein. This infant needs immediate pain relief and antibiotic therapy.

Choice D reason: This statement is false. A 4-month-old that has just returned from the recovery room is not the priority for pain medication. This infant may have some pain from the surgery, but it is likely to be moderate and controlled with pharmacological interventions, such as opioids, NSAIDs, or local anesthetics.

A. Lower your potassium (K+) level, and it will have a laxative side effect B. Lower your potassium (K+) and have a diuretic side effect C. Lower your sodium (Na+) and have a laxative side effect D. Lower your sodium (Na+) and cause diarrhea

Correct Answer is A

Explanation

Choice A reason: This statement is true. Kayexalate is a medication that binds to potassium in the colon and exchanges it for sodium, thereby lowering the blood potassium level. It also has a laxative effect, which helps to eliminate the excess potassium in the stool.

Choice B reason: This statement is false. Kayexalate does not have a diuretic effect, which means it does not increase urine output or fluid loss. Diuretics are medications that act on the kidneys and help to remove excess fluid and sodium from the body.

Choice C reason: This statement is false. Kayexalate does not lower the blood sodium level, but rather increases it. This is because it exchanges potassium for sodium in the colon, which adds more sodium to the bloodstream.

Choice D reason: This statement is false. Kayexalate does not cause diarrhea, but rather a laxative effect, which means it stimulates bowel movements and softens the stool. Diarrhea is a condition where the stool is watery and frequent, and can cause dehydration and electrolyte imbalance.

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A client has a serum potassium level of 2.9 mEq/L. Which action prescribed by the health care provider should the nurse take first?

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