A hyperglycemic patient admitted in emergency department with deep breathing and fruity odor breath. Which of the following electrolyte imbalance may suspect?

Appeared in: NORCET 5 mains

Explanation

The patient's symptoms—hyperglycemia, deep breathing, and fruity breath—are hallmark signs of Diabetic Ketoacidosis (DKA).
In DKA, the body breaks down fat for energy, producing acidic compounds called ketones.
The accumulation of these ketones leads to metabolic acidosis, a primary and life-threatening imbalance.
The body compensates for this acidosis with deep, rapid breathing (Kussmaul respirations) to exhale carbon dioxide.
The fruity odor is caused by the exhalation of acetone, a type of ketone.

Option A: While hyperkalemia (high potassium) can be an initial finding in DKA as potassium shifts out of cells in an acidic environment, it is a consequence of the acidosis, not the primary cause of the Kussmaul breathing and fruity breath. Total body potassium is actually depleted.
Option B: Hypernatremia (high sodium) can occur in DKA due to severe dehydration from osmotic diuresis. However, it does not cause the characteristic respiratory pattern or fruity breath.
Option C: Hypercalcemia (high calcium) is not a characteristic feature of DKA. Its causes are typically related to parathyroid gland problems, malignancy, or excessive vitamin D.

Clinical Relevance

Nursing practice connection: Prioritize focused assessment, early escalation, and real-time monitoring when managing Pathophysiology and clinical presentation of Diabetic Ketoacidosis (DKA) in acute care settings.
Recognizing the signs of DKA is a critical nursing skill, as it is a medical emergency requiring immediate intervention to prevent coma and death.
Nursing priorities for a patient with DKA include managing airway, breathing, and circulation (ABCs); initiating intravenous fluid resuscitation to correct dehydration; administering insulin to stop ketone production; and closely monitoring and correcting electrolyte imbalances, especially potassium.
What if? If the patient had deep breathing and a fruity breath but was hypoglycemic or euglycemic, the nurse should consider other causes of ketoacidosis, such as alcoholic ketoacidosis or starvation ketosis, which require different management strategies.

How to Approach the Question

First, identify the key clinical signs presented in the question: hyperglycemia, deep breathing, and fruity breath odor.
Recognize this combination as the classic triad for Diabetic Ketoacidosis (DKA).
Recall the underlying pathophysiology of DKA: insulin deficiency leads to fat breakdown, which produces acidic ketones.
Connect the symptoms to the pathophysiology: The ketones cause metabolic acidosis, which in turn triggers compensatory deep breathing (Kussmaul) and a fruity (acetone) breath odor.
Evaluate the options. Metabolic acidosis is the direct cause of the patient's most prominent signs. Other electrolyte changes like hyperkalemia are secondary effects.

Concept Tested & Keywords

Concept Tested: Pathophysiology and clinical presentation of Diabetic Ketoacidosis (DKA).
Stem keywords: hyperglycemic, deep breathing, fruity odor breath, electrolyte imbalance
Lead-in keywords: may suspect
Clinical cues: The combination of hyperglycemia, deep (Kussmaul) breathing, and fruity breath is a classic triad for Diabetic Ketoacidosis (DKA).

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E6 Medicine Davidson Principles Practice 24e p. 756-758

E6 Textbook of Biochemistry for medical StudentsDM Vasudevan Part 1 (pp 26-370 of 370) p. 199-201

E6 Ghai Essential Pediatrics(pp 26-904 of 913) p. 567-569

Practise the full NORCET 5 mains

Attempt every question from this paper in a timed mock, then review the full solution for each one.