A nurse is preparing to administer morphine 8 mg IV intermittent bolus to a client. The amount available is morphine 10 mg/mL. How many mL should the nurse administer?
(Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

The nurse should expect angioedema as one of the manifestations of anaphylaxis in a client experiencing an allergic reaction to an antibiotic. Angioedema is a severe swelling that occurs beneath the skin, typically affecting the face, lips, tongue, throat, or other body parts. It is a result of the release of histamine and other inflammatory mediators in response to the allergen.

Anaphylaxis is a life-threatening allergic reaction that can occur rapidly and affect multiple body systems. In addition to angioedema, other common manifestations of anaphylaxis include:

• Difficulty breathing or wheezing due to bronchospasm

• Hives or urticaria, which are itchy raised skin rashes

• Severe itching or tingling sensation

• Rapid and weak pulse

• Low blood pressure leading to hypotension

• Nausea, vomiting, or diarrhea

• Feeling of impending doom or anxiety

Let's go through the other options:

A. Hypertonic reflexes: This is not a manifestation of anaphylaxis. "Hypertonic reflexes" are not typically associated with allergic reactions or anaphylaxis. Hypertonic reflexes refer to increased muscle tone, but they are not part of the usual presentation of anaphylaxis.

B. Increase in systolic blood pressure: Anaphylaxis usually leads to a decrease in blood pressure rather than an increase. The decrease in blood pressure can be severe and result in shock, which is a life-threatening condition.

D. Urinary retention: Urinary retention is not a common manifestation of anaphylaxis. Anaphylaxis primarily affects the respiratory and circulatory systems, leading to airway constriction, difficulty breathing, and cardiovascular collapse. Urinary retention is not directly related to the pathophysiology of anaphylaxis.

Neonatal abstinence syndrome (NAS) is a group of withdrawal symptoms that occur in newborns who were exposed to drugs, including heroin, in utero. Hyporeflexia, which refers to reduced or diminished reflexes, is one of the key findings in neonates experiencing NAS.

During pregnancy, when the mother uses opioids like heroin, the baby becomes dependent on the drug. After birth, when the drug is no longer available, the baby experiences withdrawal symptoms as the body adjusts to the absence of the drug. Hyporeflexia is a common manifestation of NAS and is observed due to the central nervous system's response to the withdrawal.

Let's go through the other options:

B. Frequent yawning: While yawning can be seen in neonates with NAS, it is not as specific to the condition as hyporeflexia. Yawning can occur for various reasons and may not always be indicative of NAS.

C. Respiratory depression: Respiratory depression can be a severe complication of opioid exposure in utero and can result in life-threatening situations for the neonate. However, it is not specific to NAS. Respiratory depression is more closely associated with opioid overdose in the newborn, which can be a separate concern from NAS.

D. Constipation: Constipation is a possible symptom in neonates experiencing NAS, but it is not as specific as hyporeflexia. Constipation can occur due to various factors and is not unique to NAS.