A client with multiple sclerosis (MS) is receiving interferon beta-1b 0.1875 mg subcutaneously every other day. The nurse reconstitutes the vial by slowly injecting 1.2 mL of diluent into the interferon vial for a reconstituted solution of 0.25 mg/1 mL. How many mL should the nurse administer?
(Enter numeric value only. If rounding is required, round to the nearest hundredth.)
The Correct Answer is ["0.75"]
Calculate the volume of the reconstituted solution that contains the prescribed dose of 0.1875 mg. Since the reconstituted solution has a concentration of 0.25 mg per 1 mL, we can set up a proportion to find the answer: (0.1875 mg / X mL) = (0.25 mg / 1 mL).
Solving for X gives us X = (0.1875 mg * 1 mL) / 0.25 mg, which equals 0.75 mL.
Therefore, the nurse should administer 0.75 mL of the reconstituted solution.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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Correct Answer is B
Explanation
Rationale
A. Nausea and headache are common side effects of linezolid. While they can impact the client's comfort and adherence to treatment, they are generally not considered urgent or life-threatening unless severe or persistent.
B. Watery diarrhea is a significant concern with linezolid therapy, as it can indicate the development of Clostridium difficile infection (CDI) or other types of antibiotic-associated diarrhea. CDI is a severe condition that requires prompt treatment to prevent complications such as dehydration, colitis, and potentially life-threatening outcomes like toxic megacolon.
C. Increased fatigue can be a nonspecific symptom and may result from various factors, including the underlying illness (nosocomial pneumonia), medication side effects, or the stress of hospitalization. While it should be monitored, it is typically not an immediate concern unless accompanied by other concerning symptoms.
D. Yellow-tinged sputum can indicate the presence of infection or inflammation in the respiratory tract, which is relevant in the context of nosocomial pneumonia. It could suggest a worsening of the pneumonia or a new infection. However, it is not typically directly associated with linezolid therapy itself.
Correct Answer is B
Explanation
Rationale
A. This statement is partially true as most sexually transmitted infections (STIs), including syphilis, are primarily transmitted through sexual intercourse. However, not all STIs are exclusively transmitted through sexual contact.
B. Syphilis is caused by the bacterium Treponema pallidum and can be transmitted through direct contact with a syphilitic sore (chancre) during vaginal, anal, or oral sex. If a person has syphilis and engages in unprotected sex with a partner who is not treated, they can potentially contract or transmit the infection again, leading to reinfection.
C. While contraceptives such as condoms provide protection against unintended pregnancy and some STIs, including syphilis, they do not offer complete protection against all STIs. Condoms are effective in reducing the risk of transmission of syphilis when used consistently and correctly, but they are not 100% protective.
D. Using safe sex practices, such as consistent and correct use of condoms, reduces the risk of acquiring or transmitting STIs, including syphilis. Safe sex practices also include mutual monogamy and regular testing for STIs, especially for those who have multiple sexual partners or engage in high-risk sexual behaviors.
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