Oxygen content is highest in which of the following fetal structures?
a. Ductus venosus
b. Foramen ovale
c. Umbilical artery
d. Umbilical vein
ANS: D
Because oxygenated blood from the mother passes through the placenta to the fetus through the umbilical vein, blood in the umbilical vein has the highest oxygen content of the listed structures.
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A nurse at the mental health clinic is leaving his job and relocating to another part of the country in 6 months. What is the best way for him to deal with his clients?
a. Begin to prepare clients for his departure by assisting to transition them to another nurse. b. Increase dosage of medications for each client in anticipation of the effect his leaving will have on their progress. c. Do not inform clients until after the nurse leaves to avoid additional anxiety. d. Wait until the nurse's last day to inform clients to allow them to say good-bye, but avoid additional anxiety.
When monitoring a patient who is receiving caspofungin, the nurse should look for which serious adverse effects? (select all that apply)
A. Blood dyscrasias B. Hypotension C. Cardiac palpitations D. Tinnitus E. Hepatotoxicity
The nurse is reviewing the stages of the sexual response cycle. In which stage are the neurotransmitters acetylcholine, dopamine, and nitric oxide released?
1. Excitement 2. Plateau 3. Orgasm 4. Resolution
The client received lispro (Humalog) insulin with breakfast. Two hours later, the client experiences confusion, sweating, and dizziness. Why are these symptoms occurring?
1. The client is experiencing hyperglycemia. 2. The client is experiencing an allergic reaction to lispro (Humalog). 3. The client is experiencing a myocardial infarction. 4. The client is experiencing hypoglycemia.