The nurse is planning to administer a tuberculin test with a 27-gauge, 5/8-inch needle. At which angle will the nurse insert the needle?
15 degree
90 degree
30 degree
45 degree
The Correct Answer is A
A. The tuberculin test is administered intradermally, and the needle should be inserted at a 15-degree angle to ensure the medication is delivered just under the surface of the skin.
B. A 90-degree angle is used for intramuscular injections, not for intradermal tests like the tuberculin test.
C. A 30-degree angle is commonly used for subcutaneous injections and is too deep for an intradermal injection.
D. A 45-degree angle is also used for subcutaneous injections but is not suitable for intradermal injections.
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Correct Answer is C
Explanation
A. Elevated blood pressure may occur with various conditions but is not a specific late sign of hypoxia.
B. An increased pulse rate can be an early compensatory response to hypoxia rather than a late sign.
C. Cyanosis, which is a bluish discoloration of the skin and mucous membranes, is a classic late sign of hypoxia, indicating severe oxygen deprivation.
D. Restlessness may indicate early signs of hypoxia or anxiety rather than a late sign and can occur before cyanosis develops.
Correct Answer is B
Explanation
A. Performing movements until the patient reports pain is inappropriate in passive range of motion, as the goal is to maintain joint function without causing discomfort.
B. Moving each joint to the point of resistance helps to maintain flexibility and prevent stiffness without causing harm, making this the appropriate technique.
C. Repeating movements five times by the patient is not applicable for passive range of motion, which is performed by the nurse on a patient who cannot do it themselves.
D. While smooth movements are essential, they should not be done quickly; the focus should be on the patient's comfort and safety, avoiding rapid or jerky motions.