Nokea
Which is the most accurate genetic explanation for a family with hemophilia?
- A. It is an X-linked recessive disorder
- B. It is an autosomal recessive disorder
- C. It is equally distributed among males and females
- D. It is a Y-linked dominant disorder
Correct Answer: A
Rationale: The correct answer is A: It is an X-linked recessive disorder. Hemophilia is caused by a mutation in genes located on the X chromosome. Males inherit the disorder from their mothers, as they only inherit one X chromosome. Females can be carriers if they inherit one mutated X chromosome. Autosomal recessive disorders (choice B) require both parents to pass on the mutated gene. Hemophilia is not equally distributed among males and females (choice C) because males are more likely to exhibit symptoms. Y-linked disorders (choice D) are inherited only by males and are passed from father to son.
You may also like to solve these questions
Signs of digoxin toxicity include of the following (Select all that apply):
- A. Vomiting
- B. Poor feeding
- C. Constipation
- D. Bradycardia
Correct Answer: A,B,D
Rationale: The correct signs of digoxin toxicity are vomiting, poor feeding, and bradycardia. Vomiting is a common early sign due to the drug's effect on the gastrointestinal system. Poor feeding can occur as a result of nausea and anorexia. Bradycardia is a classic sign of digoxin toxicity due to its effect on cardiac function. Constipation is not typically associated with digoxin toxicity. In summary, A, B, and D are correct as they align with the expected symptoms of digoxin toxicity, whereas C is incorrect as constipation is not a common sign.
The expected finding of Syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH) include:
- A. Low urine output & increased levels of antidiuretic hormone
- B. Low urine output & decreased levels of antidiuretic hormone
- C. Increased urine output & decreased levels of antidiuretic hormone
- D. Increased urine output & increased levels of antidiuretic hormone
Correct Answer: A
Rationale: The correct answer is A: Low urine output & increased levels of antidiuretic hormone. In SIADH, there is an excessive release of antidiuretic hormone (ADH), leading to water retention and dilutional hyponatremia. This results in low urine output as the body retains water. Increased levels of ADH cause the kidneys to reabsorb more water, further contributing to low urine output. The other choices are incorrect because in SIADH, urine output is typically low, and ADH levels are elevated due to the dysregulation of the feedback mechanism that controls ADH release. Increased urine output and decreased levels of ADH (choice C) would be more indicative of diabetes insipidus, a condition characterized by decreased ADH production or kidney insensitivity to ADH.
A child admitted with extensive burns. The nurse notes that there are burns on the child's lips and singed nasal hairs. The nurse should suspect that the child has a(n):
- A. Chemical burn
- B. Inhalation injury
- C. Electrical burn
- D. Hot-water scald
Correct Answer: B
Rationale: The correct answer is B: Inhalation injury. The presence of burns on the lips and singed nasal hairs indicate that the child has likely inhaled hot gases or smoke, which can cause damage to the respiratory tract. This is a common finding in cases of inhalation injury resulting from exposure to fire or smoke. Inhalation injury can lead to airway compromise, respiratory distress, and other serious complications. The other choices (A: Chemical burn, C: Electrical burn, D: Hot-water scald) do not specifically indicate damage to the respiratory tract, making them less likely in this scenario.
When should children with cognitive impairments be referred for stimulation and educational programs?
- A. As young as possible
- B. As soon as they have the ability to demonstrate verbal communication
- C. At age 3 when schools are required to provide services
- D. At age 5 when schools are required to provide services
Correct Answer: A
Rationale: The correct answer is A: As young as possible. Early intervention for children with cognitive impairments is crucial for optimal development. Early stimulation and educational programs can significantly improve outcomes. The brain's plasticity is highest in early childhood, making it the most effective time for interventions. Waiting until age 3 or 5 (choices C and D) may lead to missed opportunities for crucial development. Choice B limits the intervention to verbal communication, overlooking other important areas. Therefore, referring children as young as possible (choice A) is the best approach to ensure they receive the necessary support and resources early on.
The nurse is providing education to the parents of an infant with cradle cap. Which of the following statements by the parents indicates their understanding?
- A. We should use hydrogen peroxide as shampoo for my child until it is resolved
- B. We should expect that my child will probably have asthma & allergies too
- C. We should brush the loosened crusts out of the hair after shampooing
- D. We should decrease the frequency that I wash my child's hair to once a week
Correct Answer: C
Rationale: The correct answer is C: "We should brush the loosened crusts out of the hair after shampooing." This statement indicates understanding as brushing the loosened crusts helps to remove the scales and prevent further build-up. Hydrogen peroxide (A) is not recommended for cradle cap as it can irritate the skin. Asthma and allergies (B) are not directly related to cradle cap. Decreasing hair wash frequency to once a week (D) can worsen cradle cap by allowing build-up of oils and dead skin cells.