A nurse is preparing to administer levothyroxine 100 mcg orally to a patient with hypothyroidism. The available levothyroxine is in 50 mcg tablets.
How many tablets should the nurse administer?

Choice A rationale
Turning the torso at the waist when reaching for objects can actually increase the risk of back injury. It’s important to keep the back straight and bend at the knees when lifting or reaching for objects.
Choice B rationale

Using ice packs intermittently for 48 hours is a common recommendation for acute lower back pain. Ice can help reduce inflammation and numb the area, providing relief. It’s important to use the ice packs intermittently, not continuously, to avoid frostbite.
Choice C rationale
Using 10 lb arm weights to start strengthening the back muscles is not recommended for someone with acute lower back pain. Heavy lifting can exacerbate the pain and potentially cause further injury. It’s better to start with gentle, low-impact exercises and gradually increase intensity as the back heals.
Choice D rationale
Staying in bed except for toileting during the first 24 hours is not typically recommended for acute lower back pain. While rest is important, prolonged bed rest can actually lead to muscle stiffness and increased pain. It’s generally recommended to stay as active as possible without exacerbating the pain.

Choice A rationale
Tachycardia is not a common adverse effect of oxygen therapy. It is more likely to be associated with conditions such as fever, anemia, or hypoxia.
Choice B rationale
Poor skin turgor is a sign of dehydration, not a typical adverse effect of oxygen therapy. Oxygen therapy does not directly affect the body’s hydration status.
Choice C rationale
Excessive pulmonary secretions are not a direct adverse effect of oxygen therapy. Conditions such as pneumonia or bronchitis often cause increased secretions.

Choice D rationale
Cracks in the oral mucous membranes can occur as a result of oxygen therapy. Oxygen can dry out the mucous membranes, leading to discomfort and potential cracking.