LPN Interpreting Lab Values and Nursing Actions 4

Question 1

A patient's urinalysis shows glucose 3+ and ketones 2+. What condition does the LPN suspect?

Accepted Answer

Diabetic ketoacidosis (DKA)

Answer

Urinary tract infection

Answer

Renal failure

Answer

Cushing's syndrome

Question 2

A patient's serum albumin is 2.1 g/dL. Which complication is the patient most at risk for?

Accepted Answer

Edema and impaired wound healing

Answer

Hypercalcemia

Answer

Polycythemia

Answer

Hypernatremia

Question 3

A patient's ABG shows pH 7.50, PaCO2 50 mmHg, HCO3 38 mEq/L. What does this indicate?

Accepted Answer

Metabolic alkalosis with respiratory compensation

Answer

Respiratory alkalosis

Answer

Metabolic acidosis

Answer

Combined respiratory and metabolic acidosis

Question 4

A patient has an LDH (lactate dehydrogenase) of 850 U/L. Which condition is this finding most associated with?

Accepted Answer

Tissue damage such as MI, hemolysis, or liver injury

Answer

Normal physiologic aging

Answer

Urinary tract infection

Answer

Dehydration

Question 5

A patient receiving a blood transfusion develops flank pain and dark urine. Which lab change would confirm a hemolytic transfusion reaction?

Accepted Answer

Elevated plasma free hemoglobin and hemoglobinuria

Answer

Elevated WBC count only

Answer

Decreased BUN and creatinine

Answer

Low serum LDH

Question 6

A patient's serum TSH is 0.05 mIU/L and free T4 is elevated. Which clinical findings would the LPN expect?

Accepted Answer

Tachycardia, heat intolerance, and weight loss

Answer

Bradycardia, cold intolerance, and weight gain

Answer

Hyponatremia and lethargy

Answer

Hyperglycemia and polyuria

Question 7

A patient's urine specific gravity is 1.030. How should the LPN interpret this finding?

Accepted Answer

Concentrated urine, likely indicating dehydration

Answer

Dilute urine suggesting overhydration

Answer

Normal, well-hydrated status

Answer

Indicates renal failure with inability to concentrate