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 D
Explanation
Choice A rationale
While switching to less anxiety-provoking questions might help in some situations, it does not address the immediate issue of the client undressing inappropriately.
Choice B rationale
Ignoring the client’s inappropriate behavior could potentially encourage further inappropriate actions and does not respect the therapeutic boundaries necessary in a nurse-client relationship.
Choice C rationale
Leaving the client’s room might escalate the situation further and does not address the immediate issue.
Choice D rationale
The nurse should assertively but respectfully communicate that undressing is not appropriate during the interview. This sets clear boundaries and expectations for the client’s behavior.
Correct Answer is A
Explanation
Choice A rationale
Hyperventilation leads to a decrease in the amount of carbon dioxide (CO2) in the blood. This causes the pH of the blood to increase, resulting in respiratory alkalosis.
Choice B rationale
Respiratory acidosis is caused by a buildup of CO2 in the blood, typically due to hypoventilation (under-breathing). This is not consistent with the patient’s symptoms of hyperventilation.
Choice C rationale
Metabolic alkalosis is typically caused by a significant loss of acid from the body, such as from prolonged vomiting. This is not consistent with the patient’s symptoms.
Choice D rationale
Metabolic acidosis is typically caused by an increase in acid production within the body or a loss of bicarbonate from the body, such as in diabetic ketoacidosis or kidney disease. This is not consistent with the patient’s symptoms.
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