A school nurse is assessing an adolescent who reports feeling shaky and is having difficulty speaking and concentrating on the Questions the nurse is asking. The nurse checks the adolescent’s blood glucose level and identifies a value of 55 mg/dL. Which of the following findings should the nurse expect?
Polyuria.
Dry, flushed skin.
Deep, rapid respirations.
Tachycardia.
The Correct Answer is D
Choice A rationale
Polyuria, or excessive urination, is typically associated with hyperglycemia rather than hypoglycemia. In the context of diabetes, polyuria occurs when high blood glucose levels lead to increased urine production as the body attempts to excrete excess glucose. Since the adolescent’s blood glucose level is 55 mg/dL, which indicates hypoglycemia, polyuria is not an expected finding.
Choice B rationale
Dry, flushed skin is a common symptom of hyperglycemia, not hypoglycemia. When blood glucose levels are high, the body becomes dehydrated, leading to dry skin and a flushed appearance. In contrast, hypoglycemia often presents with symptoms such as sweating, pallor, and shakiness due to the body’s response to low blood glucose levels.
Choice C rationale
Deep, rapid respirations, also known as Kussmaul respirations, are typically associated with diabetic ketoacidosis (DKA), a complication of hyperglycemia. DKA occurs when the body produces high levels of ketones due to insufficient insulin. Since the adolescent’s blood glucose level is 55 mg/dL, which indicates hypoglycemia, deep, rapid respirations are not an expected finding.
Choice D rationale
Tachycardia, or an increased heart rate, is a common symptom of hypoglycemia. When blood glucose levels drop, the body releases catecholamines (such as adrenaline) to raise blood glucose levels. This response leads to symptoms such as shakiness, sweating, and tachycardia. Therefore, tachycardia is an expected finding in an adolescent with a blood glucose level of 55 mg/dL.
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Correct Answer is D
Explanation
Choice A rationale
Sitting on a nurse’s lap leaning forward is a position that can be used for postural drainage in infants with cystic fibrosis. This position helps drain secretions from the upper lobes of the lungs.
Choice B rationale
The supine position (lying on the back) is also used for postural drainage to target different areas of the lungs. It is not contraindicated for infants with cystic fibrosis.
Choice C rationale
Sitting on a nurse’s lap leaning backward is another position that can be used for postural drainage. This position helps drain secretions from the lower lobes of the lungs.
Choice D rationale
The Trendelenburg position (lying flat on the back with the feet elevated higher than the head) is contraindicated for infants with cystic fibrosis. This position can increase the risk of gastroesophageal reflux and aspiration, which can worsen respiratory symptoms.
Correct Answer is C
Explanation
Choice A rationale
Budesonide via dry-powder inhaler is a corticosteroid used for long-term control of asthma. It is not effective for immediate relief of acute asthma exacerbations.
Choice B rationale
Cromolyn via metered-dose inhaler is a mast cell stabilizer used for long-term control of asthma. It is not effective for immediate relief of acute asthma exacerbations.
Choice C rationale
Albuterol via jet nebulizer is a short-acting beta-adrenergic agonist that provides rapid bronchodilation. It is the medication of choice for immediate relief of acute asthma exacerbations.
Choice D rationale
Montelukast orally is a leukotriene receptor antagonist used for long-term control of asthma. It is not effective for immediate relief of acute asthma exacerbations.