Heparin is supplied in bags that have 25,000 units / 250 mL. What is the concentration of Heparin?

1 unit per 1mL

10 units per 1 mL

100 units per 1 mL

1000 units per 1 mL

Answer and Explanation

The Correct Answer is C

A.   If the concentration were 1 unit/mL, then in 250 mL there would only be 250 units total, which is much lower than the provided 25,000 units.
B.   If the concentration were 10 units/mL, then in 250 mL there would be 2,500 units total, which is also much lower than the provided 25,000 units.
C.   If the concentration were 100 units/mL, then in 250 mL there would be 25,000 units total, which matches the provided information. However, while this seems plausible, it is not the answer we calculated.
D.   If the concentration were 1,000 units/mL, then in 250 mL there would be 250,000 units total, which is significantly higher than the 25,000 units provided.

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Correct Answer is C

Explanation

A. An ischemic stroke occurs when a blood vessel supplying blood to the brain is obstructed. Common symptoms include sudden numbness or weakness in the face, arm, or leg, confusion, difficulty speaking, and visual disturbances. However, "thunderclap" headache and neck stiffness are not typical symptoms of an ischemic stroke.
B. A TIA, often referred to as a "mini-stroke," produces similar symptoms to a stroke but lasts for a short duration (typically less than 24 hours) and does not cause permanent damage. Symptoms can include weakness, speech difficulties, and visual changes, but again, "thunderclap" headache and neck stiffness are not characteristic of a TIA.
C. A subarachnoid hemorrhage occurs when there is bleeding into the space between the brain and the tissues covering it, often due to a ruptured aneurysm. A "thunderclap" headache, described as an extremely sudden and severe headache, is a hallmark of this condition.
D. A cardioembolic stroke is a type of ischemic stroke that occurs when a blood clot forms in the heart and travels to the brain. Symptoms are similar to those of an ischemic stroke and do not typically include a "thunderclap" headache or neck stiffness.

A. "Cancers of the reproductive tract are slow-growing and respond well to treatment." B. "The 5-year survival rate is about 75%, so her odds are pretty good." C. "When cervical cancer is detected early and treated aggressively, the cure rate is very high." D. "Saying cancer is curable means that 50% of all women with cancer survive at least 5 years."

Correct Answer is C

Explanation

A. While it is true that some cancers of the reproductive tract can be slow-growing and may respond well to treatment, this statement is overly generalized. It does not specifically address the prognosis or treatment success associated with cervical carcinoma in situ.
B. This statement provides a statistic but may not accurately reflect the prognosis for cervical carcinoma in situ, which is typically higher than 75% when detected and treated early. This response could also imply that the survival rate for invasive cervical cancer is the same, which could lead to misunderstanding.
C. Cervical carcinoma in situ is a pre-invasive stage of cervical cancer, and when it is detected early, the treatment is usually very effective, leading to a high cure rate. This statement reassures the husband that the prognosis is good, given that early detection and treatment are key factors.
D. The term "curable" implies a much better prognosis than a mere 50% survival rate, which may refer to various cancers and does not specifically apply to cervical carcinoma in situ. This response does not provide the husband with the clarity he needs about his wife's condition.

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Heparin is supplied in bags that have 25,000 units / 250 mL. What is the concentration of Heparin?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The client is admitted with complaints of photosensitivity, neck stiffness, and a "thunderclap" headache. The nurse recognizes that these clinical manifestations would present with which type of stroke?

Correct Answer is C

Explanation

The husband of a client with cervical carcinoma in situ says to the nurse, "The doctor just told my wife that her cancer is curable. Is the doctor just trying to make us feel better?" The nurse's most accurate response would be:

Correct Answer is C

Explanation

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