The nurse is collecting a heel-stick blood specimen for a neonatal screen, which includes thyroxine (T4) and thyroid- stimulating hormone (TSH) levels, prior to discharging a 2-day-old patient.
When the parents ask why these tests are being conducted, which explanation should the nurse provide?
This is a routine blood test required by law to screen for metabolic deficiencies.
Dosages for thyroid replacement therapy will be determined by this test.
This technique is used for early detection of intellectual disabilities.
These laboratory values will provide data to anticipate delays in growth and development.
The Correct Answer is A
Choice A rationale
The neonatal screening test, which includes thyroxine (T4) and thyroid-stimulating hormone (TSH) levels, is a routine blood test required by law to screen for metabolic deficiencies. This test helps diagnose thyroid conditions. T4 is a thyroid hormone, and too much or too little of it can indicate an issue with the thyroid. TSH is a hormone your pituitary gland makes. It stimulates your thyroid to produce T4 and T3 (triiodothyronine) hormones. A TSH test is the best way to initially assess thyroid function. In fact, T4 tests more accurately reflect thyroid function when combined with a TSH test. Measuring T4 levels might not be necessary in all thyroid conditions. Other names for a T4 test include: Free thyroxine, Total T4 concentration, Thyroxine screen, Free T4 concentration, Free T4 index (FTI)1.
Choice B rationale
While the T4 and TSH tests can help diagnose thyroid conditions, they are not specifically used to determine dosages for thyroid replacement therapy. The dosage of thyroid replacement therapy is usually determined by a healthcare provider based on the patient’s medical condition, weight, age, laboratory test results, and response to treatment.
Choice C rationale
The neonatal screening test is not specifically used for the early detection of intellectual disabilities. However, it is important to note that untreated congenital hypothyroidism can lead to intellectual disabilities. Therefore, early detection and treatment of hypothyroidism generally result in normal growth and development.
Choice D rationale
While these laboratory values can provide data about the thyroid function of the newborn, they do not directly provide data to anticipate delays in growth and development. However, untreated congenital hypothyroidism can lead to growth and developmental delays. Therefore, early detection and treatment of hypothyroidism generally result in normal growth and development.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","D"]
Explanation
Choice A rationale
A productive cough is not a specific indicator of hypoxia. It could be a symptom of many conditions, including a common cold, flu, or other respiratory tract infections.
Choice B rationale
A respiratory rate of 28 breaths/minute is higher than the normal range (12-20 breaths/minute for adults), indicating that the patient may be trying to increase oxygen intake and eliminate carbon dioxide due to hypoxia.
Choice C rationale
An oxygen saturation of 90% on room air is lower than the normal range (95%-100%). This indicates that the patient’s blood is not carrying as much oxygen as it should, which is a sign of hypoxia.
Choice D rationale
A heart rate of 101 beats/minute is higher than the normal range (60-100 beats/minute for adults). This could be a response to hypoxia as the body tries to deliver more oxygen to the tissues.
Choice E rationale
A capillary refill of 4 seconds is slightly longer than the normal range (less than 2 seconds). While this could indicate poor peripheral circulation, it is not a specific or direct indicator of hypoxia.
Choice F rationale
A blood pressure of 145/89 mm Hg is higher than the normal range (less than 120/80 mm Hg). While hypertension could be related to many factors, it is not a specific indicator of hypoxia.
Correct Answer is ["A","D","E"]
Explanation
Choice A rationale
Sudden onset of confusion in an older adult could be a sign of a urinary tract infection (UTI). UTIs can cause delirium and behavioral changes in older adults. Therefore, asking if the client is experiencing any pain with urination could help identify a potential UTI.
Choice B rationale
While high protein foods are generally beneficial for health, there is no direct link between increased intake of high protein foods and sudden onset of confusion. Therefore, this option is not the most appropriate action in this situation.
Choice C rationale
Reviewing the client’s current food and medication allergies is always important in healthcare settings. However, it may not directly address the sudden onset of confusion unless the client has had a recent change in diet or medication that could have triggered an allergic reaction leading to confusion.
Choice D rationale
A recent fall could potentially cause a sudden change in mental status due to a head injury or other trauma. Therefore, determining if the client has recently experienced a fall is an appropriate action.
Choice E rationale
Fever can cause confusion, especially in older adults. Therefore, providing instruction on taking the client’s temperature can help the caregiver monitor for signs of infection that could be contributing to the client’s confusion.
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