Nokea
The nurse understands that for the parathyroid hormone to exert its effect, what must be present?
- A. Decreased phosphate level
- B. Functioning thyroid gland
- C. Adequate vitamin D level
- D. Increased calcium level
Correct Answer: D
Rationale: Parathyroid hormone (PTH) is released by the parathyroid glands in response to low calcium levels in the blood. Its primary function is to regulate calcium and phosphorus levels in the body. When calcium levels in the blood are low, PTH is released, leading to increased calcium levels by stimulating the release of calcium from the bones, increasing calcium absorption in the intestines, and promoting calcium reabsorption in the kidneys. Therefore, for PTH to exert its effect, increased calcium levels must be present.
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During a routine examination of a 10-mo-old male infant, you find a white pupillary reflex of the right eye; the eye movements are normal. You suspect retinoblastoma. Of the following, the BEST confirmatory diagnostic evaluation of this infant is
- A. indirect ophthalmoscopy with slit-lamp examination
- B. examination under general anesthesia by an experienced ophthalmologist
- C. orbital ultrasonography
- D. brain MRI
Correct Answer: B
Rationale: Examination under anesthesia by an experienced ophthalmologist is the gold standard for diagnosing retinoblastoma.
The nurse is instructed to perform preoperative preparation for the management of a client with malignant tumors. Which of the ff is the most important factor of the nursing management plan?
- A. Insertion of an ostomy pouch
- B. Assessing the symptoms of peritonitis
- C. Maintaining the integrity of the urinary
- D. Insertion of a nasogastric tube diversion procedure
Correct Answer: B
Rationale: Peritonitis is a serious and potentially life-threatening condition that can occur as a complication of malignant tumors. It is characterized by inflammation of the lining of the abdomen and can result in severe abdominal pain, tenderness, fever, and other symptoms. Prompt assessment of peritonitis symptoms is crucial for early detection and intervention to prevent further complications and improve patient outcomes. Assessing for peritonitis symptoms should be the priority in the nursing management plan to ensure timely and appropriate care for the client with malignant tumors.
Which of the following is most likely associated with a cerebrovascular accident (CVA) resulting from congenital heart disease?
- A. Polycythemia
- B. Cardiomyopathy
- C. Endocarditis
- D. Low blood pressure
Correct Answer: A
Rationale: Polycythemia, which is an abnormally elevated level of red blood cells in the blood, is commonly associated with congenital heart disease. In cases where there is a congenital heart defect that causes reduced oxygen levels in the blood, the body compensates by producing more red blood cells to try to improve oxygen delivery. This increased red blood cell production can lead to polycythemia. In turn, polycythemia can increase the risk of thrombosis, which is a known risk factor for cerebrovascular accidents (CVAs) or strokes. Therefore, polycythemia is most likely associated with a CVA resulting from congenital heart disease.
Which clinical manifestation should the nurse expect to see as shock progresses in a child and becomes decompensated shock? (Select all that apply.)
- A. Thirst and diminished urinary output
- B. Irritability and apprehension
- C. Cool extremities and decreased skin turgor
- D. Confusion and somnolence
Correct Answer: C
Rationale: Cool extremities and decreased skin turgor (C) are indications of poor perfusion as shock progresses. The body is shunting blood away from the peripheries to maintain perfusion to vital organs.
An elderly nursing home resident who has always been alert and oriented is now showing signs of dehydration and has become confused. Which electrolyte imbalance is most likely involved?
- A. Hyponatremia
- B. Hypercalcemia
- C. Hyperkalemia
- D. Hypomagnesemia
Correct Answer: A
Rationale: Hyponatremia is an electrolyte imbalance characterized by low sodium levels in the blood. Sodium plays a crucial role in regulating the body's fluid balance and is essential for nerve and muscle function. Elderly individuals are at a higher risk of developing hyponatremia due to various factors, including medication use, reduced thirst sensation, and impaired kidney function.