Nokea
A nonimmunized child appears at the clinic with a visible rash. Which of the following observations indicates the child may have rubeola (measles)?
- A. Small blue-white spots are visible on the oral mucosa.
- B. The rash begins on the trunk and spreads outward.
- C. There is low-grade fever.
- D. The lesions have a "teardrop-on-a-rose-petal"? appearance.
Correct Answer: A
Rationale: The presence of small blue-white spots on the oral mucosa, known as Koplik's spots, is characteristic of measles (rubeola) infection. These spots typically appear on the buccal mucosa opposite the second molars, 1-2 days before the rash onset, and last until 2 days after the rash appears. While Koplik's spots are pathognomonic for measles, their absence does not rule out the diagnosis. Therefore, choice A is the correct answer. Choices B, C, and D are incorrect because the rash pattern, presence of low-grade fever, and characteristic appearance of lesions are not specific indicators of measles infection.
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The client has a long leg cast. During discharge teaching about appropriate exercises for the affected extremity, the nurse should recommend:
- A. Isometric
- B. Range of motion
- C. Aerobic
- D. Isotonic
Correct Answer: D
Rationale: The nurse should recommend isometric exercises for the muscles of the casted extremity. Isometric exercises involve contracting and relaxing muscles without moving the affected part. This type of exercise helps maintain muscle strength without moving the joint, which is important for clients with immobilized extremities. Range of motion exercises involve moving the joint through its full range of motion, which may not be suitable for a client with a long leg cast. Aerobic exercises focus on increasing cardiovascular endurance and may not be appropriate for a client with a casted extremity. Isotonic exercises involve muscle contractions with movement, which may not be safe for the affected extremity in a cast.
A child has recently been diagnosed with Duchenne muscular dystrophy (DMD). The parents are receiving genetic counseling prior to planning another pregnancy. Which of the following statements includes the most accurate information?
- A. Duchenne is an X-linked recessive disorder, so daughters have a 50% chance of being carriers and sons a 50% chance of developing the disease.
- B. Duchenne is an X-linked recessive disorder, so both daughters and sons have a 50% chance of developing the disease.
- C. Each child has a 1 in 4 (25%) chance of developing the disorder.
- D. Sons only have a 1 in 4 (25%) chance of developing the disorder.
Correct Answer: A
Rationale: The correct answer is that Duchenne is an X-linked recessive disorder, meaning the affected gene is located on one of the two X chromosomes of a female carrier. If a son receives the X chromosome bearing the gene, he will develop the disease, giving him a 50% chance of being affected. Daughters, on the other hand, are not affected by Duchenne but have a 50% chance of being carriers since they inherit one copy of the defective gene from the mother. The other X chromosome is inherited from the father, who cannot be a carrier. Therefore, choice A is accurate. Choice B is incorrect because daughters do not develop the disease, and sons have a 50% chance of developing, not both having a 50% chance. Choice C is incorrect as it does not consider the X-linked inheritance pattern of Duchenne. Choice D is inaccurate as it incorrectly states that only sons have a 25% chance of developing the disorder, omitting the carrier status of daughters.
A patient in the cardiac unit is concerned about the risk factors associated with atherosclerosis. Which of the following are hereditary risk factors for developing atherosclerosis?
- A. Family history of heart disease
- B. Overweight
- C. Smoking
- D. Age
Correct Answer: A
Rationale: A family history of heart disease is an inherited risk factor for developing atherosclerosis. This factor is not modifiable through lifestyle changes. Studies have shown that having a first-degree relative with heart disease significantly increases the individual's risk of developing atherosclerosis. Overweight, smoking, and age are not hereditary risk factors for atherosclerosis. Overweight and smoking are lifestyle-related risk factors, while age is a non-modifiable risk factor that increases with time but is not directly inherited.
Which of the following components is associated with hypertonic dehydration?
- A. Plasma sodium levels above 150 mEq/L
- B. Fluid moves from extracellular space to intracellular space
- C. Water loss is greater than electrolyte loss
- D. Physical signs and symptoms are grossly apparent
Correct Answer: C
Rationale: The correct answer is 'Water loss is greater than electrolyte loss.' In hypertonic dehydration, there is a higher loss of water compared to electrolytes, leading to elevated concentrations of electrolytes in the body. This condition is characterized by plasma sodium levels above 150 mEq/L. As water moves from the extracellular space to the intracellular space, it results in cellular dehydration. Choice A is incorrect because the plasma sodium levels associated with hypertonic dehydration are typically above 150 mEq/L, not between 130 and 150 mEq/L. Choice B is incorrect as fluid moves from the extracellular space to the intracellular space in hypertonic dehydration. Choice D is incorrect because physical signs and symptoms may not always be grossly apparent in hypertonic dehydration.
A nurse is providing dismissal instructions for a child who was admitted for rotavirus. Which of the following statements by the parent indicates the need for further teaching?
- A. I'll start giving him his antibiotics as soon as we get home.
- B. I will call the physician if he becomes dizzy or overly fussy.
- C. He will need to wash his hands a lot to keep this from spreading.
- D. I'll watch to see when he stops having diarrhea stools.
Correct Answer: A
Rationale: The correct answer is 'I'll start giving him his antibiotics as soon as we get home.' Rotavirus is a viral illness, and antibiotics are ineffective for its treatment. The parent's statement indicates a need for further teaching as antibiotics are not appropriate for treating rotavirus. Option B is correct as it demonstrates the parent's understanding of when to contact the physician for concerning symptoms. Option C is a correct statement regarding infection control practices. Option D is also correct as monitoring diarrhea stools is essential to track recovery from rotavirus.