Down Syndrome is caused by which additional chromosome?

Answer and Explanation

The Correct Answer is B

A. 20. Trisomy 20 is not associated with Down syndrome.

B. 21. Down syndrome results from an extra copy of chromosome 21, called Trisomy 21.

C. 22. Trisomy 22 leads to other syndromes but not Down syndrome.

D. 19. Trisomy 19 is incompatible with life and does not cause Down syndrome.

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Correct Answer is A

Explanation

A. "I should place a cool mist humidifier in his room.": Children with Down Syndrome often have narrow nasal passages and a tendency toward respiratory infections. A cool mist humidifier helps keep the airways moist, reducing irritation and easing breathing.

B. "I should expect him to have frequent diarrhea.": Diarrhea is not a common symptom associated with Down Syndrome; constipation is more frequent due to low muscle tone.

C. "I should expect him to grow faster in length than other infants.": Infants with Down Syndrome tend to have slower growth rates and may not reach the same length or weight milestones as peers.

D. "I should avoid the use of lotion on his skin.": Infants with Down Syndrome often have dry, sensitive skin, and the use of lotion is encouraged to prevent dryness and cracking.

A. Dropping held object B. Loss of consciousness C. Falling to the floor D. Appearance of daydreaming

Correct Answer is ["A","B","D"]

Explanation

A. Dropping held object: Loss of motor activity during absence seizures may result in dropping objects.

B. Loss of consciousness: Absence seizures involve brief, sudden loss of consciousness without convulsions.

C. Falling to the floor: This is associated with atonic or tonic-clonic seizures, not absence seizures.

D. Appearance of daydreaming: A hallmark of absence seizures is the "staring spell" or daydream-like appearance.

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Down Syndrome is caused by which additional chromosome?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is reinforcing teaching with the guardian of an infant who has Down Syndrome and respiratory symptoms. Which of the following statements by the guardian indicates an understanding of the teaching?

Correct Answer is A

Explanation

A nurse is caring for a child who has absence seizures. Which of the following findings should the nurse expect? (select all that apply.)

Correct Answer is ["A","B","D"]

Explanation

A nurse is caring for a child who is having a tonic-clonic seizure and vomiting. Which of the following actions is the nurse's priority?

A nurse is caring for a preschooler who is the hospital for sickle cell disease. Which of the following should the nurse identify as an expected behavior of a preschool-age-child?

A nurse is assisting with the development of an inservice about viral and bacterial meningitis. The nurse should include that the introduction of which of the following immunizations decreased the incidence of bacterial meningitis?

A nurse is preparing to administer liquid mycostatin 600,000 units PO every 8 hr. Available is mycostatin 100,000 units/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

The nurse instructs a mother of a child who has seizures regarding seizure precautions. Which statement by the mother indicates a need for further teaching?

An adolescent has just had a generalized seizure and collapsed in the school nurse's office. When should the nurse call 911?

A nurse is reinforcing teaching to the caregivers of a child who is to have an electroencephalogram (EEG). Which of the following statements by the caregivers indicates understanding of the teaching?