67 Questions
Why is blood glucose monitoring important for managing hyperglycemia?
To track trends and identify patterns
How can exercise influence blood glucose control?
Improving insulin sensitivity
What is a potential risk of high-intensity exercise in individuals with diabetes?
Hyperglycemia
What is the recommended timing for checking blood glucose levels in relation to exercise?
Before, during, and after exercise
What is a major risk factor for women with gestational diabetes?
Developing Type 2 diabetes later in life
Which type of diabetes is characterized by an immune system-mediated destruction of pancreatic beta cells?
Type 1 diabetes
Which type of diabetes requires daily insulin injections for management in most cases?
Type 1 diabetes
What are some classic symptoms associated with severe hyperglycemia in advanced stages of type 2 diabetes mellitus?
Weight loss, blurred vision, and polydipsia
Which of the following is a common symptom of type 2 diabetes mellitus as it progresses over years?
Frequent urination
Define Diabets Mellitus
a group of metabolic diseases characterized by the inability to produce sufficient insulin or use it properly, resulting in hyperglycaemia
What are the acute complications of diabetes
Hyperglycaemia and hypoglycaemia
What are the manifestations (signs, symptoms and effects) of hyperglycaemia
- blood glucose levels poorly managed
- diabetic ketoacidosis
- hyperosmolar nonketotic syndrome
What role does the kidney play during hyperglycaemia
High blood glucose levels cause the kidneys to excrete glucose and water
Symptoms of Hyperglycaemia and their cause.
headache, blurred vision, increased thirst, weakness, and fatigue. These symptoms are due to the Kidney's attempt to excrete excess glucose from the blood by increasing urination
Define the diagnostic criteria for diabetes in Aus
Fasting BGL ≥ 7.0 mmol/L OGTT > 11.1 mmol/L HbA1C ≥ 6.5%
What is insulin and whats its role
Is a hormone produced by the beta cells of the pancreas. It is needed by the skeletal muscles, adipose tissue, and liver to absorb and use glucose
Blood glucose elevations in combination with poorly managed diabetes, increases one's risk of what 3 acute and chronic health issues?
CVD, microvasculardiseases, and both autonomic and peripheral neuropathy (nerve damage)
What factor independently causes some degree of insulin resistance?
Excess weight
Define insulin resistance
It is where the body cannot effectively use insulin for the uptake of glucose into the muscle or liver. It is not a lack of insulin, its poor function of insulin.
Exercise is not contraindicated in someone experiencing diabetes ketoacidosis
False
Define diabetic ketoacidosis
occurs in patients whose diabetes is in poor control and in whom the amount of effective insulin is very low or absent
Which type of diabetes is more likely to cause ketoacidosis
Type 1
What are symptoms of ketoacidosis
abdominal pain, nausea, vomiting, rapid or deep breathing,sweet,or fruity smelling breath
Why would you see elevated ketones in the blood?
when the body breaks down fat for energy because of a lack of carbohydrates
What is the result of the breakdown of fat for energy when there is a lack of CHOs?
Elevated ketones in the blood
What chemical byproduct is a direct result of low glucose?
Ketones
What is ketosis
is a metabolic process that occurs when the body breaks down fat for energy if its not getting enough CHOs
What causes hyperosmolar non-ketotic syndrome and why?
profound and prolonged hyperglycaemia because of the Kidney's attempt to excrete excess glucose
Symptoms of hyperosmolar non-ketotic syndrome
severe dehydration, excessive urination and can cause coma
What intrinsic and extrinsic factors increase risk and are attribute to hypogylcaemia
- too much insulin
- too little carbohydrate intake
- missed meals
- excessive or poorly planned exercise
Hypoglycaemia can occur either during exercise or hours to days later?
True
What sort of exercise generally triggers late onset of hypoglycaemia
moderate to high intensity lasting longer than 30min
Why can hypoglycaemia be delayed after exercise?
- increase insulin sensitivity
- on going glucose use. (occurs to replenish muscle and liver glycogen stores)
- physiological replacement of glycogen stores through gluconeogenesis (biosynthesis of glucose from certain non-carbohydrate carbon substrates)
how does the body combat a decrease in blood glucose?
By releasing glucose-raising hormones such as glucagon, epinephrine, growth hormone, and cortisol. These hormones help increase circulating blood glucose levels
How does the release of epinephrine and glucagon effect blood glucose?
they are released as blood glucose decreases to help increase circulating blood glucose
what are the 2 categories of symptoms of hypoglycaemia?
Adrenergic and neuroglycopaenic
Name some adrenergic symptoms
Shakiness, weakness, sweating, nervousness, anxiety, tingling of mouth and fingers, hunger
name some neuroglycopaenic symptoms
headache, visual disturbances, mental dullness, confusion, amnesia, seizures
What are cardiovascualr consequences of hypoglycaemia?
decrease vasodilation, blood coagulation abnormalities, increased inflammation markers, sympathoadrenal responses
What is hypoglycaemia unawareness
the inability to sense hypoglycaemia symptoms. It is the onset of neuroglycopaenic symptoms before the apperance of adrenergic warning symptoms
Consequences of Hypoglycaemia unawareness
HU may result in many serious forms of morbidity including seizure, coma, fractures and joint dislocation and cardiac arrhythmias, and is occasionally fatal.
What do you do if you think you have a patient who is currently hypoglycaemic?
- test blood glucose to confirm 2.consumption ~15g of CHO that contains minimal or no fat
- wait 15-20 min to allow symptoms to resolve 4.re test blood glucose levels
What factor of diabetes is the leading mechanism in the development of chronic complications?
hyperglycaemia
Name macrovascular diseases that result from chronic hyperglycaemia
coronary artery disease, myocardial infarction, peripheral artery disease
name microvascular complications resulting from chronic hyperglycaemia
retinopathy (eye disease) and nephropathy
What is peripheral neuropathy and its symptoms
Weakness, numbness and pain from nerve damage, usually in the hands and feet. Legs are affected before hands. Sensory symptoms include Ps&Ns and burning. Loss of sensory input to the feet can cause foot deformities affecting gait and increases risk of injury
Define autonomic neuropathy
it affects the non-voluntary, non-sensory nervous system, can affect any system of the body including the cardiovascular, respiratory, nueroendorcine, and gastrointestial.
What is cardiovascular autonomic neuropathy manifested by?
high resting heart rate response and abnormal blood flow response during exercise
Summarize the complications of diabetes
Acute= hypoglycaemia, hyperglycaemia, diabetic ketoacidosis, hypersomolar state Chronic= microvascular (retinopathy, nephropathy, neuropathy) and macrovascular(arteriosclerosis, myocardial infarction, stroke, lower extremity gangene)
What are some possible macrovascular complications
Increased risk of stroke and cerebrovascular disease including transient ischemic attack and cognitive impairment. High BP and insulin resistance increase risk or coronary heart disease. Peripheral vascular disease resulting from narrowing blood vessels increasing risk for reduced blood flow.
While people with T2D may remain unsymptommatic, what are the classic signs and symptoms seen, especially in those who are undiagnosed
-Polydipsia (excessive thirst) -Polyuria (frequent urination) -Polyphagia (excessive hunger) -Unexplained weight loss -Infections and cuts that are slow to heal -Blurry vision -Fatigue
What 3 things should you inquire about before commencing exercise testing to prevent acute complications?
-starting blood glucose level (self monitored) -amount, type, and timing of most recent food intake -medication use and timing
Which of the following is incorrect?
T1D is caused by alpha cell destruction
Which of the following is true of T1D?
It always requires insulin therapy
The most common initial treatment for T2D is what?
Life management strategies
Which of the following is incorrect regarding T2D?
It is not influenced by genetics
Which of the following ketone values represents medically significant ketoacidosis?
All of the above
In which of the following circumstances is exercise contraindicated?
Diabetic Ketoacidosis
Hypoglycemia is most likely to occur in which of the following situations?
Too little CHO is consumed
Which of the following is a macrovascular complication of diabetes
Peripheral artery diseasse
Which of the following is the primary cause of adrenergic hypoglycaemic symptoms
Increased epinephrine release
How should you treat confirmed hypoglycaemia?
15 gram of glucose and minimal fat
What is the most common initial sign or symptom of peripheral neuropathy
Abnormal sensory symptoms
What would you expect for a typical patient with cardiovascular autonomic neuropathy?
High resting HR, low exercising HR
A fasting blood glucose of 6.2mmol/L indicates which of the following?
Impaired fasting glucose
In which of the following circumstances is exercise contraindicated?
Hyperglycaemic hyperosmolar non-ketotic syndrome
Which of the following is contraindicated in proliferative retinopathy
All of the above
Study Notes
Hyperglycemia Control: Managing Blood Glucose through Exercise and Monitoring
Hyperglycemia, a condition characterized by high blood glucose levels, is a common issue for individuals with diabetes. Effective management of hyperglycemia is crucial for maintaining overall health and preventing complications. This article focuses on two subtopics within hyperglycemia control: blood glucose monitoring and exercise routines.
Blood Glucose Monitoring
Blood glucose monitoring is a vital aspect of managing hyperglycemia. Regular monitoring allows individuals to assess their glucose levels and take appropriate actions to maintain optimal blood glucose levels. This can involve adjusting insulin doses, modifying meal plans, or engaging in physical activity. Continuous glucose monitoring systems (CGMs) can provide real-time glucose readings, enabling users to track trends and identify patterns that may indicate the need for intervention.
Exercise Routines
Exercise is a powerful tool in managing hyperglycemia. Regular physical activity can help lower blood glucose levels, improve insulin sensitivity, and reduce the risk of complications associated with diabetes. The type and timing of exercise can influence blood glucose control.
Exercise Intensity and Timing
Moderate exercises, such as walking or cycling, can cause a slow drop in blood glucose levels, while some exercises, like running or football, may cause blood glucose levels to rise. Exercise-induced hyperglycemia is more common in type 1 diabetes, and purposeful insulin omission or malfunctioning infusion sets can contribute to this condition. Individuals with type 2 diabetes may also experience increases in blood glucose after aerobic or resistance exercise, particularly if they administer too little insulin for meals before activity.
Exercise Types and Benefits
Aerobic exercise, such as walking, swimming, or cycling, can lower blood glucose levels, especially when performed during postprandial periods with the usual insulin dose. High-intensity interval training (HIIT) and resistance exercise can also be beneficial, especially when performed before or after meals. However, very intense activities like sprinting or heavy powerlifting may promote hyperglycemia, especially if starting glucose levels are elevated.
Exercise and Hypoglycemia
Hypoglycemic events can occur within 6-15 hours post-exercise, and the risk can extend to 48 hours. Reducing daily basal insulin doses and adjusting prandial insulin doses can help minimize the risk of nocturnal hypoglycemia. Using continuous glucose monitoring and adjusting insulin doses based on glucose trends can also be helpful.
Exercise Recommendations
Individuals with type 1 diabetes should check blood glucose levels before and during exercise, adjust insulin doses accordingly, and monitor glucose levels after exercise to prevent hypos. Drinking plenty of water and wearing diabetes ID necklaces or bracelets while exercising are also essential safety measures.
Conclusion
Proper blood glucose monitoring and adhering to an appropriate exercise routine are crucial for managing hyperglycemia in diabetes. Regular monitoring allows for timely intervention, while exercise can help lower blood glucose levels and improve overall health. The timing, intensity, and type of exercise can all play a role in blood glucose control. Consulting with healthcare professionals and adhering to personalized exercise and monitoring plans can help individuals with diabetes effectively manage their blood glucose levels and reduce the risk of complications.
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