NORCET 3 - 2022 (Shif…: What would be the possible manifestations in a patient who is suffering from diabetic coma?

NORCET 3 - 2022 (Shift-1)

Medical & Surgical Nursing

Easy

Appeared in: NORCET 3 - 2022 (Shift-1)

Explanation

A diabetic coma is a state of unconsciousness caused by severe metabolic disturbances in diabetes.
The most common cause is extreme hyperglycemia (very high blood sugar), which defines conditions like Diabetic Ketoacidosis (DKA) and Hyperosmolar Hyperglycemic State (HHS).
Hyperglycemia is the core pathophysiological state that leads to severe dehydration, electrolyte imbalance, and altered mental status, culminating in a coma.
Blood glucose levels in DKA are typically above 250 mg/dL, and in HHS, they are often greater than 600 mg/dL.

Option A: Moist skin and sweating are hallmark signs of hypoglycemia (low blood sugar), not the hyperglycemic state that causes a diabetic coma.
Option C: Excessive thirst (polydipsia) is a symptom caused by the dehydration resulting from hyperglycemia. However, hyperglycemia is the underlying metabolic state itself, making it the more fundamental and primary answer.
Option D: Hyperglycemia initially causes polyuria (increased urination) due to osmotic diuresis. Decreased urination (oliguria) is a very late and ominous sign indicating severe dehydration and impending kidney failure, not a typical presenting manifestation.

Clinical Relevance

Nursing practice connection: Use the key finding related to Clinical manifestations of diabetic emergencies to guide bedside assessment, documentation, and the next nursing action.
The most critical nursing action for an unconscious patient with a history of diabetes is to check their blood glucose level immediately. This is because the treatments for hyperglycemia and hypoglycemia are opposite.
Administering glucose to a hyperglycemic patient can be fatal, while withholding it from a hypoglycemic patient can cause irreversible brain damage.
What if? If the patient was found unconscious and a finger-stick glucose test showed 'HI' (meaning the level is too high for the meter to read), the priority would be to establish IV access for fluid resuscitation and prepare for an insulin infusion, per protocol.

How to Approach the Question

First, understand the term 'diabetic coma'. Recognize it's a severe state resulting from extreme blood sugar levels, most commonly high blood sugar (hyperglycemia).
Analyze the options to differentiate between a core pathophysiological state and its resulting signs or symptoms.
Option B, 'Hyperglycaemia', describes the fundamental metabolic state that causes the coma.
Options A, C, and D are either symptoms of hyperglycemia (thirst), signs of the opposite condition (sweating for hypoglycemia), or late complications (decreased urination).
Identify that the underlying state (hyperglycemia) is the most comprehensive and accurate answer among the choices.

Concept Tested & Keywords

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