Nokea
The nurse is caring for a 68-year-old client in the emergency department.
Nurses' Notes,
Emergency Department
1020:
The client reports shortness of breath, a 2-lb weight gain over the past week, and lower extremity swelling. The client
reports slight chest discomfort during activity that is relieved with rest. Medical history is significant for hypertension.
myocardial infarction, heart failure, coronary artery disease, and chronic stable angina. Current medications include
metoprolol, furosemide, potassium chloride, lisinopril, and aspirin. The client takes all medications as prescribed except
one; he states, "I do not take that water pill because I got tired of having to go to the bathroom all the time."
S1 and S2 are present; a prominent S3 is heard. Respirations are labored with inspiratory crackles in the middle and at the
base of the lungs. The abdomen is soft and nontender with normoactive bowel sounds. There is 3+ pitting edema in the
bilateral lower extremities.
Vital Signs,
1020
T ,98.8 F (37.1 C)
P, 60
RR, 24
BP, 168/96
SpO2, 90% on room air
Laboratory Test and Reference Range, 1030
Sodium
136-145 mEq/L
(136-145 mmol/L),
133 mEq/L
(133 mmol/L)
Potassium
3.5-5.0 mEq/L
(3.5-5.0 mmol/L),
6.5 mEq/L
(6.5 mmol/L)
BUN
10-20 mg/dL
(3.6-7.1 mmol/L),
22 mg/dL
(7.85 mmol/L)
Creatinine
Male: 0.6-1.3 mg/dL
(53-114.9 umol/L),
1.5 mg/dL
(132.6 umol/L)
Female: 0.5-1.1 mg/dL
(44.2-97.2 umol/L)
The nurse has reviewed the information from the Nurses' Notes, Vital Signs, and Laboratory Results.The nurse is reviewing the client's response to potassium-lowering therapies. Which finding is unexpected and requires follow-up by the
nurse?
Correct Answer: A
Rationale: Treatment for hyperkalemia includes administration of calcium gluconate, furosemide, albuterol nebulizer, and insulin with dextrose. These
therapies may cause rapid shifts in fluid volume, blood glucose, and serum electrolytes. Insulin shifts available glucose and potassium into
the cell, lowering serum potassium levels; however, too much insulin and not enough dextrose cause hypoglycemia (eg, blood glucose 50
mg/dL [2.7 mmol/L]). Clients with kidney disease have an increased risk of hypoglycemia because insulin may accumulate.
The nurse should understand that a low blood glucose level and symptoms suspicious for hypoglycemia (eg, diaphoresis) require follow-u
to prevent seizures, coma, and death due to lack of circulating glucose (Option 1). This client requires an additional dose of dextrose.
(Option 2) This client's blood pressure is 146/88 mm Hg and heart rate is within normal limits. This is an improvement from the initial blood
pressure and represents a therapeutic response to furosemide administration. Blood pressure should be lowered slowly to avoid hypotensior