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DHA Radiotherapy Technician (DHA-RADTech) Practice Exams & Test Prep - Review


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DHA Radiotherapy Technician - Reviews


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See why our users from 154 countries love us for their exam prep! Including 145 reviews for the DHA Radiotherapy Technician exam.

Exam Edge is an industry leader in online test prep. We work with institutional partners to offer a wide array of practice tests that will help you prepare for your big exam. No matter how niche your field of interest might be, we're here to help you prepare for test day.

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DHA Radiotherapy Technician - Test Reviews Sample Questions

What type of urinary catheter is placed outside of the body?



Correct Answer:
external catheter.
the type of urinary catheter that is placed outside of the body is known as an *external catheter*.

external catheters, also commonly referred to as condom catheters, are designed for use predominantly in male patients. unlike internal catheters that are inserted into the bladder through the urethra, external catheters consist of a sheath that fits over the penis similar to a condom. this sheath is connected to a drainage tube that leads to a urine collection bag. these catheters are called *external* because they do not enter the body's internal spaces.

the primary advantage of external catheters is that they are less invasive than indwelling catheters (urethral or suprapubic) and short-term (intermittent) catheters. because they do not penetrate the urethra or bladder, the risk of urinary tract infections is significantly reduced. external catheters are generally used for men who suffer from urinary incontinence but do not have urinary retention issues. they are particularly useful for patients who are mobile and cognitively aware, as they require proper positioning and regular monitoring to ensure the sheath remains securely in place and to prevent leakage.

external catheters are typically made of silicone or latex and are available in various sizes to ensure a comfortable and secure fit. they are easy to apply and remove, making them a convenient option for short-term use, especially overnight or when prolonged bedrest is not required. despite their advantages, it's crucial for users or caregivers to monitor the catheter regularly for any signs of irritation or skin breakdown around the genital area.

in summary, external catheters are a suitable option for managing urinary incontinence in certain populations, providing a non-invasive method to effectively collect urine while minimizing the risk of infection associated with internal catheters. they are specifically designed to remain outside the body, making them distinct from other types of urinary catheters.

An overactive thyroid gland is referred to as:



Correct Answer:
hyperthyroid


an overactive thyroid gland is medically termed as hyperthyroidism. this condition arises when the thyroid gland, located at the front lower part of your neck, produces an excess amount of thyroid hormones. these hormones, namely thyroxine (t4) and triiodothyronine (t3), play crucial roles in your body's metabolism, heart function, digestive function, muscle control, brain development, and maintenance of bones. when the levels of these hormones are too high, it can cause various symptoms and affect multiple bodily systems.

the causes of hyperthyroidism can vary and include graves' disease, toxic adenoma, plummer's disease, and thyroiditis. graves' disease is the most common cause and is an autoimmune disorder where the immune system mistakenly attacks the thyroid gland, leading to overproduction of hormones. toxic adenoma involves autonomously functioning thyroid nodules that produce thyroid hormones outside of the pituitary gland's regulatory influence, and plummer's disease (toxic multinodular goiter) refers to multiple such nodules. thyroiditis, which is inflammation of the thyroid, can cause stored thyroid hormones to leak out of the inflamed gland and raise hormone levels in the blood.

the diagnosis of hyperthyroidism is typically confirmed through various tests. one common diagnostic tool is the measurement of serum hormone levels, including tsh (thyroid-stimulating hormone), t3, and t4. a low tsh and high t3 or t4 usually indicate hyperthyroidism. additionally, thyroid uptake measurements, which involve the administration of radioactive iodine or technetium as a tracer to see how much is absorbed by the thyroid gland, can also be instrumental. in hyperthyroidism, the uptake is usually higher because the gland is overactive.

symptoms of hyperthyroidism include unexpected weight loss, rapid or irregular heartbeat, sweating, nervousness or anxiety, irritability, tremors, and more. these symptoms result from the accelerated metabolism and increased energy production in the body. treatment for hyperthyroidism can vary depending on the cause and severity of the condition but may include antithyroid medications, radioactive iodine treatment, or thyroid surgery.

in contrast, hypothyroidism refers to an underactive thyroid gland, which produces insufficient amounts of thyroid hormones, leading to a slowdown in bodily functions. euthyroid is a term used to describe a normal functioning thyroid gland where hormone production is within the typical range. each of these conditions reflects different functional states of the thyroid gland, necessitating specific approaches for diagnosis and management.