Physiological adaptation
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What this topic is really about
Dehydration in elderly patients is characterized by dry mucous membranes and decreased skin turgor due to reduced fluid volume.. Dehydration reduces fluid volume, leading to dry mucous membranes and decreased skin turgor as tissues lose moisture.
The nurse should first check the blood glucose level of a patient with type 1 diabetes who is exhibiting signs of hypoglycemia.. The patient is exhibiting classic signs of hypoglycemia, which must be confirmed by checking blood glucose before taking action.
See the mechanism
The patient's symptoms, such as shakiness and diaphoresis, are indicative of hypoglycemia, but blood glucose must be checked to confirm the diagnosis before taking action. A diagram for this topic isn't available yet — the worked example below walks the same reasoning step by step.
An exam-style question, fully explained
A patient with type 1 diabetes is shaky and diaphoretic. The nurse should first:
- Identify what the question tests: A patient with type 1 diabetes is shaky and diaphoretic..
- The patient is exhibiting classic signs of hypoglycemia, which must be confirmed by checking blood glucose before taking action.
- Administering insulin (Option A) without checking is dangerous because it would lower blood sugar even further, potentially causing severe harm.
- Why it matters: The patient's symptoms, such as shakiness and diaphoresis, are indicative of hypoglycemia, but blood glucose must be checked to confirm the diagnosis before taking action. Administering insulin without checking blood glucose could worsen the condition and cause severe harm. Checking blood glucose is a crucial step in determining the appropriate course of action.
Traps the examiner sets
- Many people mistakenly think that administering insulin is the first step in managing a patient with diabetes who is experiencing symptoms, but this is incorrect because insulin would exacerbate hypoglycemia. Others may think that calling the physician is the first step, but the nurse should first assess the patient's blood glucose level to provide accurate information to the physician.
- Many individuals confuse signs of fluid volume overload with those of dehydration, incorrectly attributing symptoms like sunken eyes and dry mucous membranes to fluid excess. However, these are actually indicative of fluid deficiency.
- Some individuals, such as athletes, may have a resting heart rate below 60 bpm, but this is not normal for the general adult population.
- Many people mistakenly associate bounding pulse and hypertension with dehydration, when in fact these signs are more commonly associated with fluid overload. This confusion can lead to incorrect diagnosis and treatment.
- Sunken eyes and dry mucous membranes are incorrect because they are classic signs of dehydration, not fluid excess.
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