Correct Answer: B

Rationale: Monitoring for dry mouth or constipation is important with amitriptyline, a tricyclic antidepressant, as its anticholinergic effects commonly cause these side effects in fibromyalgia treatment.
Choice A is incorrect because amitriptyline is typically taken at bedtime due to its sedative effects, not in the morning.
Choice C is incorrect because amitriptyline takes weeks to provide pain relief, not immediately.
Choice D is incorrect because amitriptyline should not be discontinued abruptly, even if symptoms improve, to avoid withdrawal or relapse; it requires provider guidance.

Correct Answer: D

Rationale:
Choice A is wrong because flushing the catheter with saline should be done after securing the catheter to the skin with a transparent dressing and attaching a primed piece of extension tubing to the catheter.
Choice B is wrong because retracting the stylet should be done after advancing the catheter into the vein and releasing the tourniquet from the client's arm.
Choice C is wrong because releasing the tourniquet should be done after advancing the catheter into the vein and before retracting the stylet. This is because after puncturing the skin and the vein, the nurse needs to advance the catheter into the vein with the finger hub to ensure proper placement and prevent complications such as infiltration or phlebitis.

Correct Answer: A

Rationale: Applying a cold pack to the surgical site for the first 24 hours reduces swelling and pain, promoting comfort and recovery after total knee arthroplasty.
Choice B is incorrect because keeping the affected leg in a dependent position increases swelling; the leg should be elevated to reduce edema.
Choice C is incorrect because active range-of-motion exercises are typically started later (e.g., day 2 or 3), with passive or assisted exercises on day 1 to avoid strain.
Choice D is incorrect because heparin is usually given subcutaneously (e.g., enoxaparin) for DVT prophylaxis, not IV, and the duration depends on the provider's protocol, not automatically 7 days.

Correct Answer: B

Rationale: Swelling in the affected leg may indicate deep-vein thrombosis, requiring provider notification. Pain, mild fever, and normal heart rate are expected.

Correct Answer: A

Rationale: A non-tender, protruding abdomen is a normal finding for a 2-year-old toddler. This is due to the immature development of the abdominal muscles and the relatively large size of the liver and kidneys in relation to the rest of the body.
Choice B is wrong because the head circumference should be equal to or less than the chest circumference by age 2. A head circumference that exceeds the chest circumference could indicate hydrocephalus or other neurological problems.
Choice C is wrong because the fontanels, or soft spots on the skull, should be closed by the age of 18 months. Palpable fontanels could indicate dehydration, malnutrition, or congenital disorders.
Choice D is wrong because the natural loss of deciduous teeth, or baby teeth, usually begins around age 6. Premature loss of teeth could indicate dental caries, trauma, or endocrine disorders.