A client who had knee replacement surgery receives a prescription for enoxaparin 30 mg subcutaneously every 12 hours for 10 days. The medication is available in 30 mg per 0.3 mL prefilled syringes. How many mL should the practical nurse (PN) administer each day? (Enter numerical value only.).

The Herpes zoster (shingles) vaccination is recommended for adults aged 60 years and older, regardless of whether they have had shingles or chicken pox before. The vaccine can reduce the risk of developing shingles and its complications, such as postherpetic neuralgia.

The other options are not correct because:

A. The vaccine is useful even if the person has had a case of shingles before, as shingles can recur in some people. The vaccine can prevent or reduce the severity of future episodes.

C. The person needs to get this vaccination even if they have had chickenpox, as shingles are caused by the reactivation of the same virus that causes chickenpox (varicella-zoster virus). The vaccine can boost the immunity against the virus and prevent it from reactivating.

D. The vaccination does not minimize outbreaks of cold sores, as cold sores are caused by a different virus (herpes simplex virus). The vaccine has no effect on this virus or its symptoms.

Correct Answer: B. Joint pain.

Choice B rationale:

Joint pain is the most common symptom experienced by individuals during a sickle cell crisis. The misshapen red blood cells can block blood flow to joints, leading to severe pain and inflammation. Joint pain is a hallmark sign of a sickle cell crisis, and managing pain is a critical aspect of caring for these patients.

Choice A rationale:

Decreased hemoglobin is not the expected symptom during a sickle cell crisis. A sickle cell crisis is characterized by sudden and severe pain due to the misshapen red blood cells blocking blood flow and causing tissue damage. While a sickle cell crisis can lead to anemia, the child experiencing the crisis would be more likely to describe pain and not specifically mention decreased hemoglobin.

Choice C rationale:

Infection is not a typical symptom experienced during a sickle cell crisis. While sickle cell disease can increase the risk of infections, the crisis itself primarily manifests as acute pain due to vaso-occlusion.

Choice D rationale:

Fatigue may be experienced by individuals with sickle cell disease, especially during or after a crisis, but it is not the most likely symptom they would describe during a sickle cell crisis. The hallmark symptom of a sickle cell crisis is severe pain.