Case Study #3
Jane Fonda Is a 74 year-old female who lives alone, and has been admitted to the hospital
because of weakness and confusion. She has a history of chronic heart failure and chronic
Neurologic: confusion, slow to respond to questioning, generalized weakness
Cardiovascular: blood pressure90/62, heart rate112 and irregular, peripheral pulse is weak,
EKG indicates sinus tachycardia
Pulmonary respiration 12 per minute and shallow
Additional findings: decreased skin turgor and dry mucous membranes
Significant Laboratory Results:
Potassium 2.5 mEq/L
BUN 42 mg/dl (15mmol/L)
Arterial blood gas (ph 7.52, PaCO2 55mmHg PaO2 88mmHg HC)3 42mEq/L
1. Evaluate Jane’s fluid volume and electrolyte status. Which physical assessment findings
support your analysis? Which laboratory results support your analysis? What is the most
likely etiology of these imbalances?
2. Explain the rational for Jane’s EKG changes.