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 ["A","D"]
Explanation
A. Turning the clean pillowcase inside out over the hand holding it helps avoid contamination and allows easy application.
B. Soiled linens should be kept away from the nurse's uniform to prevent cross-contamination; hence, this is incorrect.
C. Sterile gloves are not required for bed-making; clean gloves may be used when handling soiled linens.
D. A modified mitered corner keeps the bed neat and helps secure the sheet, blanket, and spread.
E. Advising the patient of a lump when rolling over is not necessary for bed making, as the goal is to provide comfort without lumps.
Correct Answer is A
Explanation
A. The P wave represents atrial depolarization, which is initiated by the SA node, the heart's natural pacemaker.
B. The AV node is responsible for conducting impulses from the atria to the ventricles but does not initiate the P wave.
C. The Bundle of His transmits the electrical impulses to the ventricles but is not directly associated with the P wave.
D. Purkinje fibers are involved in ventricular depolarization, which corresponds to the QRS complex, not the P wave.