A nurse in a clinic is preparing to administer the measles, mumps, rubella (MMR) vaccine to a client. Which of the following findings should indicate to the nurse that the client has a contraindication for the MMR vaccine?

A. The client had a local reaction from a previous immunization. A mild local reaction, such as redness or swelling at the injection site, is not a contraindication to receiving the MMR vaccine. These reactions are common and typically resolve without complications. Only severe allergic reactions, such as anaphylaxis, would warrant withholding the vaccine.

B. The client reports having diarrhea this morning. Mild illnesses, such as diarrhea or the common cold, do not contraindicate vaccination. The MMR vaccine can be safely administered as long as the client does not have a moderate to severe illness with fever. Delaying immunization due to minor illnesses could lead to unnecessary gaps in vaccine coverage.

C. The client is at 9 weeks of gestation. The MMR vaccine is a live attenuated vaccine and is contraindicated during pregnancy due to the theoretical risk of fetal harm. Pregnant individuals should wait until after delivery to receive the vaccine. If a client of childbearing age is vaccinated, they should be advised to avoid pregnancy for at least 4 weeks following immunization to reduce the risk of congenital rubella syndrome.

D. The client reports an allergy to penicillin. A penicillin allergy is not a contraindication for the MMR vaccine. The MMR vaccine does not contain penicillin or related antibiotics. Severe allergic reactions to vaccine components, such as neomycin or gelatin, would be more relevant contraindications. Clients with a penicillin allergy can safely receive the MMR vaccine without concern.

A. Orthostatic hypotension. Prednisone does not typically cause orthostatic hypotension. Instead, corticosteroids can lead to fluid retention and hypertension due to their effects on sodium and water balance. Orthostatic hypotension is more commonly associated with medications such as diuretics or antihypertensives.

B. Hyperglycemia. Prednisone is a glucocorticoid that increases blood glucose levels by enhancing gluconeogenesis and reducing insulin sensitivity. This effect can make blood sugar more difficult to control in clients who take insulin, potentially requiring higher insulin doses to maintain glycemic control. Clients with diabetes or those taking insulin should closely monitor their blood glucose levels while on prednisone.

C. Paresthesia. Paresthesia (numbness or tingling) is not a common adverse effect of prednisone or a direct interaction with insulin. While uncontrolled diabetes can cause diabetic neuropathy, prednisone does not typically cause neurological symptoms like tingling.

D. Jaundice. Prednisone is not commonly associated with hepatotoxicity or liver dysfunction leading to jaundice. However, long-term corticosteroid use may increase liver enzyme levels, but it does not typically cause direct liver damage or bile obstruction. Jaundice would require evaluation for other underlying liver conditions.