Diabetes Mellitus Nursing Test Bank
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Diabetes Mellitus NCLEX Challenge Exam (Quiz #1: 25 Questions)
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1. Question1 point(s)
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Knowing that gluconeogenesis helps to maintain blood glucose levels, a nurse should:
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A. Document weight changes because of fatty acid mobilization.
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B. Evaluate the patient’s sensitivity to low room temperatures because of decreased
adipose tissue insulation.
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C. Protect the patient from sources of infection because of decreased cellular protein
deposits.
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D. Do all of the above.
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Correct answer: D. Do all of the above
All measures ensure gluconeogenesis in maintaining glucose homeostasis. The
purpose of gluconeogenesis is to maintain blood glucose levels during a fast. In the
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human body, some tissues rely almost exclusively on glucose as a metabolic fuel
source.
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Option A: Fatty acid oxidation is indispensable for gluconeogenesis; although fatty acid
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carbon cannot be used for glucose, fat oxidation provides both an energy source (ATP)
to support gluconeogenesis and acetyl coenzyme A (acetyl-CoA) to activate pyruvate
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carboxylase.
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Option B: Cold exposure is associated with hypothalamic signals to constrict the
peripheral blood vessels, minimize sweat production, and increase metabolic heat
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production (i.e., shivering and nonshivering thermogenesis) during prolonged and/or
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severe cold exposure to prevent dangerous drops in core temperature.
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Option C: A protein deficit can also take its toll on the immune system. Impaired
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immune function may increase the risk or severity of infections, a common symptom of
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severe protein deficiency.
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2. Question1 point(s)
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The nurse is admitting a patient diagnosed with type 2 diabetes mellitus. The nurse
should expect the following symptoms during an assessment, except:
A. Hypoglycemia
B. Frequent bruising
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C. Ketonuria
D. Dry mouth
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Correct answer: A. Hypoglycemia
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Hypoglycemia does not occur in type 2 diabetes unless the patient is on insulin therapy
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or taking other diabetes medication. In T2DM, the response to insulin is diminished, and
this is defined as insulin resistance. During this state, insulin is ineffective and is initially
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countered by an increase in insulin production to maintain glucose homeostasis, but
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over time, insulin production decreases, resulting in T2DM.
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Option B: Type 2 diabetes can affect blood circulation which makes it easier for the skin
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to bruise. Decreased blood flow to the area surrounding an injury prevents a wound
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from healing properly, resulting in the development of bruise-like lesions or spots.
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Option C: The presence of ketones in the urine happens due to a lack of available
insulin. T1DM patients can often present with ketoacidosis (DKA) coma as the first
manifestation in about 30% of patients.
Option D: Losing a lot of fluids caused by frequent urination can lead to dehydration
hence patients can develop dry mouth. People with diabetes are prone to dehydration.
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In those with diabetes, a person’s blood glucose levels can become too high. The term
for this is hyperglycemia, and it can cause a person to experience dry mouth.
3. Question1 point(s)
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Glycosylated hemoglobin (HbA1C) test measures the average blood glucose control of
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an individual over the previous three months. Which of the following values is
considered a diagnosis of pre-diabetes?
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A. 6.5-7%
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B. 5.7-6.4%
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C. 5-5.6%
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D. >5.6%
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Correct Answer: B. 5.7-6.4%
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Glycosylated hemoglobin levels between 5.7%-6.4% are considered as pre-diabetes.
The hemoglobin A1c (glycated hemoglobin, glycosylated hemoglobin, HbA1c, or A1c)
test is used to evaluate a person’s level of glucose control. The test shows an average
of the blood sugar level over the past 90 days and represents a percentage. Anyone
with an HbA1c value of 5.7 % to 6.4 % is considered to be prediabetic