MEDKIT 48?! Medical Library
Diabetes and Blood Sugar
Glucose • Insulin • Hypoglycemia • DKA. Learn diabetes and blood sugar vocabulary including glucose, insulin, hypoglycemia, hyperglycemia, DKA, A1C, and nursing safety.
Learning note: This medical library article is for learning and review only. It is not medical advice, diagnosis, or treatment. In a real emergency, call local emergency services.
Overview: Glucose • Insulin • Hypoglycemia • DKA. Learn diabetes and blood sugar vocabulary including glucose, insulin, hypoglycemia, hyperglycemia, DKA, A1C, and nursing safety.
What this lesson teaches
Diabetes vocabulary shows up everywhere in healthcare because blood sugar affects energy, brain function, wound healing, infection risk, kidneys, eyes, nerves, and circulation.
This lesson teaches the basic terms students need before they move into medication details and patient safety scenarios.
- Separate hypoglycemia from hyperglycemia.
- Understand insulin, glucagon, A1C, and ketones.
- Recognize diabetic ketoacidosis as an emergency concept.
- Use patient safety thinking around meals, insulin, and symptoms.
Core lesson
Glucose is sugar in the blood. The body uses glucose for energy. Insulin helps move glucose from the bloodstream into cells. When insulin is missing or not working well, blood glucose rises.
Hypoglycemia means low blood glucose. It can cause sweating, shaking, hunger, anxiety, headache, confusion, weakness, and even seizure or unconsciousness. Because the brain depends on glucose, low sugar can become urgent.
Hyperglycemia means high blood glucose. It can cause thirst, frequent urination, blurred vision, fatigue, and slow wound healing. Very high glucose with ketones and acidosis can become diabetic ketoacidosis, especially in insulin deficiency.
A1C is a longer-term marker of average blood glucose over roughly the past few months. It is not the same as a finger-stick glucose, which shows a point-in-time reading.
Key terms to know
- Glucose
- Sugar in the blood used by the body for energy.
- Insulin
- A hormone that helps move glucose from blood into cells.
- Hypoglycemia
- Low blood glucose. It can cause shakiness, sweating, confusion, hunger, and weakness.
- Hyperglycemia
- High blood glucose. It can cause thirst, frequent urination, fatigue, and blurry vision.
- A1C
- A lab test that reflects average blood glucose over approximately two to three months.
- Ketones
- Acidic substances produced when the body breaks down fat for fuel, important in diabetic ketoacidosis.
- Diabetic ketoacidosis
- A serious emergency involving high glucose, ketones, dehydration, and acidosis.
- Glucagon
- A hormone or emergency medication that raises blood glucose.
- Peripheral neuropathy
- Nerve damage that can cause numbness, pain, or tingling, often in the feet.
- Sliding scale insulin
- Insulin dosing based on current blood glucose according to an ordered scale.
How to think through questions
- When a diabetes question mentions sweating, shaking, confusion, or sudden weakness, think low sugar first.
- When insulin is ordered, connect it to meals, blood glucose checks, timing, and hypoglycemia risk.
- When high glucose appears with vomiting, dehydration, rapid breathing, fruity breath, or ketones, think possible DKA.
Common mistakes
- Mixing up A1C and current glucose. A1C is longer-term; finger-stick is now.
- Giving insulin thinking without considering whether the patient will eat.
- Ignoring foot care and wound risk in diabetes.
- Treating all high blood sugar as the same level of urgency. Symptoms and ketones matter.
Memory hooks
- Cold and clammy can be low sugar.
- High sugar pulls water: thirst and urination.
- A1C is the report card; finger-stick is the snapshot.
Mini quiz
- What is hypoglycemia?
Show answer
Low blood glucose.
- What does A1C show?
Show answer
A longer-term estimate of average blood glucose over roughly two to three months.
- Why are ketones important in diabetes?
Show answer
They can signal fat breakdown and possible diabetic ketoacidosis in the right clinical context.
Quick review
Diabetes and Blood Sugar Study Guide is designed to help students understand the language before they play the terms in MEDKIT 48 HOURS?! Review the key terms, then return to the game and test recall under pressure.
Study method: read the core lesson, say each key term out loud, answer the mini quiz, then play the matching game level.