When is isotretinoin (Accutane) indicated for the treatment of acne during adolescence?
- A. The acne has not responded to other treatments.
- B. The adolescent is or may become pregnant.
- C. The adolescent is unable to give up foods causing acne.
- D. Frequent washing with antibacterial soap has been unsuccessful.
Correct Answer: A
Rationale: Isotretinoin (Accutane) is a potent medication used for severe acne that has not responded to other treatments, such as topical medications or antibiotics. It is typically considered as a last resort due to its potential side effects and risks. Adolescents with resistant, severe acne who have not seen improvement with other therapies may be good candidates for isotretinoin treatment. It is important for the prescribing healthcare provider to carefully assess the severity of the acne and weigh the benefits against the potential risks before initiating isotretinoin therapy.
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The least common late neurologic sequelae that may be encountered post craniospinal irradiation in a 9-year-old child with medulloblastoma is
- A. microcephaly
- B. learning disabilities
- C. cognitive impairment
- D. second malignancy
Correct Answer: D
Rationale: Second malignancy is a rare late effect compared to cognitive and learning impairments.
One of the complications of prolonged bed rest is decubitus ulcer. Which of the following can best prevent its occurrence?
- A. Massage reddened areas with lotion or oils
- B. Use special water mattress
- C. Turn frequently every 2 hours
- D. Keep skin clean and dry
Correct Answer: C
Rationale: Turning the patient frequently every 2 hours helps relieve pressure on specific areas of the body, hence reducing the risk of developing decubitus ulcers. Prolonged pressure on the skin can lead to poor blood circulation and tissue damage, which can eventually progress into decubitus ulcers. By turning the patient regularly, the pressure is redistributed and different areas of the skin are relieved from constant stress. This simple measure is an effective way to prevent the occurrence of decubitus ulcers in patients on prolonged bed rest.
A nurse is preparing to test a school-age child's vision. Which eye chart should the nurse use?
- A. Denver Eye Screening Test
- B. Allen picture card test
- C. Ishihara vision test
- D. Snellen letter chart
Correct Answer: D
Rationale: The nurse should use the Snellen letter chart to test a school-age child's vision. The Snellen chart is specifically designed to assess distance vision by having the child read rows of letters of various sizes from a specific distance. This chart is commonly used for vision screenings and has standardized letter sizes that help determine visual acuity. The other options listed - Denver Eye Screening Test, Allen picture card test, and Ishihara vision test - are not typically used for testing visual acuity in the same way the Snellen chart is.
What usually triggers the weight loss of anorexia nervosa?
- A. Sexual abuse
- B. School failure
- C. Independence from family
- D. Traumatic interpersonal conflict
Correct Answer: D
Rationale: Weight loss in anorexia nervosa is commonly triggered by various factors, including traumatic interpersonal conflicts. These conflicts may involve strained relationships with family members, friends, or other individuals, contributing to emotional distress and disturbances in eating behaviors. Individuals with anorexia nervosa may engage in extreme restriction of food intake as a way to cope with and gain a sense of control over the challenging emotions arising from these conflicts. It is important to address and work through these underlying interpersonal issues through therapy and support in the treatment of anorexia nervosa.
The major pharmacologic action of albuterol sulfate (Proventil HFA) is:
- A. decreasing airway reactivity.
- B. decreasing inflammation and airway obstruction.
- C. improving the action of cilia to sweep trapped mucous upward.
- D. relaxing constricted bronchial smooth muscle.
Correct Answer: D
Rationale: Albuterol acts as a beta-2 agonist, relaxing bronchial smooth muscle to relieve airway constriction.