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 C
Explanation
Choice A rationale
Comparing muscle strength bilaterally is important in assessing overall physical health and detecting any potential neuromuscular disorders. However, in the context of a client with a history of heart failure and elevated potassium levels, this would not be the most critical intervention. High potassium levels can lead to hyperkalemia, which can cause serious heart rhythm disturbances.
Choice B rationale
Observing the color and amount of urine can provide valuable information about the client’s hydration status and kidney function. In the case of heart failure, monitoring urine output can help assess the effectiveness of diuretic therapy and the progression of the disease. However, it is not the most immediate concern given the client’s high potassium levels.
Choice C rationale
Determining the apical pulse rate and rhythm is the most important intervention in this scenario. A serum potassium level of 6.2 mEq/L is higher than the normal range (3.5-5.0 mEq/L) and can cause life-threatening heart rhythm abnormalities. Therefore, the nurse should prioritize assessing the client’s heart rhythm to detect any abnormalities caused by this electrolyte imbalance.
Choice D rationale
Assessing the strength of deep tendon reflexes can help identify changes in neuromuscular function and is often used in neurological assessments. However, it is not the most critical intervention in the context of elevated potassium levels and heart failure.
Correct Answer is ["A","B","C","D"]
Explanation
Choice A rationale
Administering IV fluids is a potential nursing intervention for several body systems. For example, the circulatory system may require IV fluids to maintain blood volume and pressure. The renal system may need IV fluids to ensure adequate urine output. The digestive system might need IV fluids to compensate for losses from vomiting or diarrhea.
Choice B rationale
Assessing a rash is a potential nursing intervention for the integumentary system. Rashes can be a sign of many different conditions, including allergic reactions, infections, autoimmune diseases, and more. By assessing the rash, the nurse can gather information to help determine its cause and appropriate treatment.
Choice C rationale
Administering an antihistamine is a potential nursing intervention for the immune system. Antihistamines are often used to treat allergic reactions, which involve the immune system.
They can also be used to treat symptoms of the common cold, which is caused by a viral infection.
Choice D rationale
Administering a steroid is a potential nursing intervention for several body systems. Steroids can be used to reduce inflammation, which can benefit the musculoskeletal, integumentary, respiratory, and other systems. They can also be used to treat certain endocrine disorders.
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