A nurse is teaching a health class about the heart. Which information from the class members indicates teaching by the nurse is successful for the flow of blood through the heart, starting in the right atrium?
Left atrium, right ventricle, left ventricle
Left atrium, left ventricle, right ventricle
Right ventricle, left atrium, left ventricle
Right ventricle, left ventricle, left atrium
The Correct Answer is A
A. Blood flow starts from the right atrium, moves into the right ventricle, then to the lungs, where it is oxygenated and returns to the left atrium, and then flows into the left ventricle before being pumped into the aorta.
B. This sequence incorrectly places the left atrium before the right ventricle, which is not the correct flow of blood.
C. This sequence starts incorrectly with the right ventricle, skipping the left atrium entirely after blood is oxygenated.
D. This option also incorrectly starts with the right ventricle and does not include the proper sequence of blood flow.
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Correct Answer is A
Explanation
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.
Correct Answer is B
Explanation
A. While the patient may have been in a life-threatening situation, this point is not necessarily a direct indictment of the nurse’s actions but rather a justification for performing CPR.
B. The prosecution will likely focus on whether the CPR was performed according to accepted standards of care. If it can be shown that the technique was inappropriate or negligent, this would support the claim of malpractice.
C. Performing CPR according to policy may serve as a defense for the nurse, emphasizing adherence to established protocols.
D. While it is true that older adults with brittle bones may be at risk for fractures, this is a known risk of CPR, and the prosecution will aim to demonstrate specific negligence or failure in technique rather than just acknowledging inherent risks.