A mother has recently been informed that her child has Down syndrome. You will be assigned to care for the child at shift change. Which of the following characteristics is not associated with Down syndrome?
- A. Simian crease
- B. Brachycephaly
- C. Oily skin
- D. Hypotonicity
Correct Answer: C
Rationale: Individuals with Down syndrome commonly have certain physical characteristics, such as a simian crease (single transverse palmar crease), brachycephaly (shortened front-to-back skull dimension), and hypotonicity (low muscle tone). Oily skin is not a characteristic associated with Down syndrome; instead, individuals with Down syndrome often have dry skin. Therefore, oily skin is the correct answer in this context.
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A patient with a history of diabetes mellitus is on the second postoperative day following cholecystectomy. She has complained of nausea and isn't able to eat solid foods. The nurse enters the room to find the patient confused and shaky. Which of the following is the most likely explanation for the patient's symptoms?
- A. Anesthesia reaction
- B. Hyperglycemia
- C. Hypoglycemia
- D. Diabetic ketoacidosis
Correct Answer: C
Rationale: In a postoperative diabetic patient who is unable to eat solid foods, the likely cause of symptoms such as confusion and shakiness is hypoglycemia. Confusion and shakiness are common manifestations of hypoglycemia. Insufficient glucose supply to the brain (neuroglycopenia) can lead to confusion, difficulty with concentration, irritability, hallucinations, focal impairments like hemiplegia, and, in severe cases, coma and death. Anesthesia reaction (Choice A) is less likely in this scenario as the patient is already on the second postoperative day. Hyperglycemia (Choice B) is unlikely given the patient's symptoms and history of not eating. Diabetic ketoacidosis (Choice D) typically presents with hyperglycemia, ketosis, and metabolic acidosis, which are not consistent with the patient's current symptoms of confusion and shakiness.
A healthcare provider is assessing vital signs in pediatric patients. Which of the following vital signs is abnormal?
- A. 11-year-old male: 90 BPM, 22 RPM, 100/70 mmHg
- B. 13-year-old female: 105 BPM, 22 RPM, 105/50 mmHg
- C. 5-year-old male: 102 BPM, 24 RPM, 90/65 mmHg
- D. 6-year-old female: 100 BPM, 26 RPM, 90/70 mmHg
Correct Answer: B
Rationale: The normal range of vital signs for pediatric patients varies with age. For 11 to 14-year-olds, the normal vital sign ranges are: Heart rate: 60-105 BPM; Respiratory rate: 12-20 RPM; Blood pressure: Systolic 85-120 mmHg, Diastolic 55-80 mmHg. The 13-year-old female in choice B has a diastolic blood pressure below the normal range, indicating hypotension. Additionally, her heart rate is at the upper limit of normal, and her respiratory rate is within normal limits. Choices A, C, and D all fall within the normal ranges for vital signs in pediatric patients.
After assessing Mr. B, what is the initial action of the nurse?
- A. Immediately place the client in a negative-pressure room
- B. Set the client up to receive a bronchoscopy
- C. Contact the physician for antifungal medications
- D. Administer oxygen and assist the client to sit in the semi-Fowler's position
Correct Answer: A
Rationale: The first action the nurse should take after assessing Mr. B is to administer oxygen and assist him to sit in the semi-Fowler's position. Administering oxygen helps improve tissue oxygenation, while sitting up in a semi-Fowler's position aids in better breathing and secretion clearance. Placing the client in a negative-pressure room is not the immediate priority unless isolation is needed. Performing a bronchoscopy or contacting the physician for antifungal medications is not the initial step in managing a client with suspected pneumonia.
The nurse is caring for a client with a serum potassium level of 3.5 mEq/L. The client is placed on a cardiac monitor and receives 40 mEq potassium chloride in 1000 ml of 5% dextrose in water IV. Which of the following EKG patterns indicates to the nurse that the infusions should be discontinued?
- A. Narrowed QRS complex
- B. Shortened "PR"? interval
- C. Tall peaked "T"? waves
- D. Prominent "U"? waves
Correct Answer: C
Rationale: A tall peaked T wave is a characteristic EKG pattern associated with hyperkalemia. Hyperkalemia refers to high levels of potassium in the blood, which can lead to cardiac arrhythmias and other serious complications. Tall peaked T waves are a red flag for potential cardiac issues and can indicate the need to discontinue potassium infusions. The other choices, such as narrowed QRS complex, shortened "PR"? interval, and prominent "U"? waves, are not typically associated with hyperkalemia. Therefore, recognizing tall peaked T waves is crucial for the nurse to take prompt action in managing the client's condition.
A child weighing 30 kg arrives at the clinic with diffuse itching as the result of an allergic reaction to an insect bite. Diphenhydramine (Benadryl) 25 mg 3 times a day is prescribed. The correct pediatric dose is 5 mg/kg/day. Which of the following best describes the prescribed drug dose?
- A. It is the correct dose
- B. The dose is too low
- C. The dose is too high
- D. The dose should be increased or decreased, depending on the symptoms
Correct Answer: B
Rationale: The correct pediatric dose of diphenhydramine is 5 mg/kg/day. This child weighs 30 kg, so the calculated dose would be 5 mg/kg x 30 kg = 150 mg/day. Since the prescription is for 25 mg 3 times a day, the total daily dose is 25 mg x 3 = 75 mg/day, which is lower than the calculated dose of 150 mg/day. Therefore, the prescribed dose of 25 mg 3 times a day is too low for this child. The dose should be adjusted to meet the correct dosage of 150 mg/day, which would be 50 mg 3 times a day. It is important not to titrate the dosage based on symptoms without consulting a physician, as this can lead to inappropriate medication administration.
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