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A nurse is caring for an infant who has recently been diagnosed with a congenital heart defect. Which of the following clinical signs would most likely be present?
- A. Slow pulse rate
- B. Weight gain
- C. Decreased systolic pressure
- D. Irregular WBC lab values
Correct Answer: B
Rationale: Weight gain due to fluid accumulation is associated with heart failure and congenital heart defects. When the heart is unable to circulate blood normally, the kidneys receive less blood, leading to reduced fluid filtration into the urine. The excess fluid accumulates in various body parts such as the lungs, liver, eyes, and sometimes in the legs. Slow pulse rate (Choice A) is less likely as infants with heart failure typically present with tachycardia due to the body compensating for decreased cardiac output. Decreased systolic pressure (Choice C) is also less likely as heart failure typically leads to increased blood pressure as the body tries to maintain adequate perfusion. Irregular white blood cell (WBC) values (Choice D) are not directly associated with congenital heart defects unless there is an underlying infection or inflammatory process.
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An 85-year-old male has been losing mobility and gaining weight over the last two months. The patient also has the heater running in his house 24 hours a day, even on warm days. Which of the following tests is most likely to be performed?
- A. CBC (complete blood count)
- B. ECG (electrocardiogram)
- C. Thyroid function tests
- D. CT scan
Correct Answer: C
Rationale: The symptoms of weight gain and poor temperature tolerance in an elderly male suggest a potential thyroid dysfunction. Thyroid function tests are crucial in differentiating between hyperthyroidism, hypothyroidism, and a euthyroid state. These tests involve measuring the serum levels of thyroid hormones T3 and T4, also known as thyroxine, to evaluate thyroid function accurately. A complete blood count (Choice A) would not directly address the symptoms presented. An electrocardiogram (Choice B) assesses heart activity and would not be the primary test for these symptoms. A CT scan (Choice D) provides detailed images of internal organs and structures, which would not be the initial investigation for the described symptoms.
A patient is scheduled for a magnetic resonance imaging (MRI) scan for suspected lung cancer. Which of the following is a contraindication to the study for this patient?
- A. The patient is allergic to shellfish.
- B. The patient has a pacemaker.
- C. The patient suffers from claustrophobia.
- D. The patient takes antipsychotic medication.
Correct Answer: B
Rationale: The correct answer is that the patient has a pacemaker. A pacemaker is a contraindication to MRI scanning due to the interference with the magnetic fields of the MRI scanner. This interference can potentially deactivate the pacemaker, putting the patient at risk. Patients with cardiac implantable electronic devices (CIED) are at risk for inappropriate device therapy, device heating/movement, and arrhythmia during MRI. This necessitates special precautions such as scheduling in a CIED blocked slot or having electrophysiology nurse or technician support. It is important to ensure that the patient's pacemaker is MRI conditional before proceeding with the scan. The other choices, such as being allergic to shellfish, suffering from claustrophobia, or taking antipsychotic medication, are not direct contraindications to undergoing an MRI scan for suspected lung cancer.
A patient's chart indicates a history of ketoacidosis. Which of the following would you not expect to see with this patient if this condition were acute?
- A. Vomiting
- B. Extreme Thirst
- C. Weight gain
- D. Acetone breath smell
Correct Answer: C
Rationale: In acute ketoacidosis, a patient typically experiences rapid weight loss due to the body burning fat and muscle for energy in the absence of sufficient insulin. Therefore, weight gain would not be expected. Vomiting may occur due to the metabolic disturbances associated with ketoacidosis. Extreme thirst is a common symptom as the body tries to compensate for dehydration. Acetone breath smell is a classic sign of ketoacidosis as acetone is one of the ketones produced during this condition.
A nurse prepares to care for a 4-year-old newly admitted for rhabdomyosarcoma. The nurse should alert the staff to pay more attention to the function of which area of the body?
- A. All striated muscles
- B. The cerebellum
- C. The kidneys
- D. The leg bones
Correct Answer: A
Rationale: Rhabdomyosarcoma is the most common soft tissue sarcoma in children, originating in striated (skeletal) muscles and potentially affecting any part of the body. Symptoms vary based on the location of the tumor. In the head or neck area, symptoms may include sudden bulging or swelling of the eyes, conjunctival chemosis, and headache. Rhabdomyosarcoma can also impact organs like the urinary or reproductive system. Common metastatic sites include the lungs. Therefore, the nurse should pay attention to the function of all striated muscles in the child to monitor for any signs or symptoms related to the disease. Choices B, C, and D are incorrect as rhabdomyosarcoma primarily involves striated muscles and does not specifically target the cerebellum, kidneys, or leg bones.
What intervention should the nurse implement while a client is having a grand mal seizure?
- A. Open the jaw and place a bite block between the teeth
- B. Try to place the client on his side
- C. Restrain the client to prevent injury
- D. Place pillows around the client
Correct Answer: B
Rationale: During a grand mal seizure, the client is at risk of injury due to severe, involuntary muscle spasms and contractions. It is crucial for the nurse to avoid restraining the client or inserting objects into their mouth, as these actions may lead to further harm. Placing the client on their side can help facilitate the drainage of oral secretions and assist in maintaining an open airway, reducing the risk of aspiration. Restraint should be avoided as it can exacerbate muscle contractions and increase the risk of injury. Placing pillows around the client may not provide adequate support or protection during the seizure, making it a less effective intervention compared to positioning the client on their side.