Chapter 37

S.T., a 64-year-old patient, has HF controlled with digoxin, furosemide, and a low-sodium diet. She is taking potassium chloride (KCl) 20 mEq per day orally. Three days ago, ST had flulike symptoms that included anorexia, nausea, lethargy, and diarrhea. Her fluid and food intake was diminished, and she refused to take the KCl, stating that the drug makes her sick. She has been taking the digoxin and furosemide daily.

The nurse's assessment during the home visit includes poor skin turgor, poor muscle tone, irregular pulse rate, and decreased bowel sounds. The nurse obtained a blood sample for serum electrolytes, and results indicated potassium (K) 2.9 mEq/L, sodium (Na) 137 mEq/L, and chloride (Cl) 96 mEq/L.

1. Match S.T.'s physical findings with the corresponding electrolyte imbalance.
2. What are the reasons for the electrolyte imbalance?
3. What is the effect of furosemide on digoxin when there is a potassium deficit?Explain your answer.