A nurse is caring for a client who is postpartum and asks the nurse why her newborn received a vitamin K injection.
The nurse should explain that the injection is administered in order to prevent which of the following complications in the newborn?
Sepsis.
Tachypnea.
Bleeding.
Jaundice.
The Correct Answer is C
The nurse should explain that the injection is administered in order to prevent vitamin K deficiency bleeding (VKDB) in the newborn. Vitamin K is needed for blood clotting, but newborn babies have very low levels of vitamin K in their bodies at birth because only small amounts of the vitamin pass through the placenta and breast milk. VKDB can cause life-threatening bleeding in various parts of the body, such as the brain, intestines, or skin. VKDB can be classified into early-onset, classic, or late- onset depending on the time of presentation after birth. The most effective way to prevent VKDB is to give a single intramuscular dose of 0.5 to 1 mg of vitamin K to all newborn infants within 6 hours of birth.
Choice A is wrong because sepsis is not caused by vitamin K deficiency, but by bacterial infection.
Choice B is wrong because tachypnea is not caused by vitamin K deficiency, but by respiratory distress or other conditions.
Choice D is wrong because jaundice is not caused by vitamin K deficiency, but by high levels of bilirubin in the blood.
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Related Questions
Correct Answer is B
Explanation
It occurs because nicotine stimulates the release of dopamine, a neurotransmitter that regulates mood and pleasure. When nicotine intake is stopped, dopamine levels drop and cause anxiety and irritability.
Choice A is wrong because tachycardia, or rapid heart rate, is not a symptom of nicotine withdrawal. In fact, smoking can increase blood pressure and heart rate, so quitting smoking may lower them.
Choice C is wrong because weight loss is not a symptom of nicotine withdrawal. On the contrary, weight gain is more likely to occur after quitting smoking, because nicotine suppresses appetite and increases metabolism.
Choice D is wrong because vomiting is not a symptom of nicotine withdrawal. Vomiting may be a side effect of some nicotine replacement therapies, such as patches or gum, but it is not caused by the lack of nicotine itself.
Correct Answer is D
Explanation
Dysrhythmia is an abnormal heart rhythm that can be a sign of severe lithium toxicity.
Lithium toxicity can occur when a person takes too much lithium, a mood- stabilizing medication used to treat bipolar disorder and major depressive disorder.
Choice A is wrong because hypoglycemia is not a symptom of lithium toxicity. Hypoglycemia is low blood sugar that can cause symptoms such as shakiness, sweating, hunger, and confusion.
Choice B is wrong because excess salivation is not a symptom of lithium toxicity. Excess salivation can be caused by various factors, such as infections, medications, or nerve damage.
Choice C is wrong because urinary retention is not a symptom of lithium toxicity. Urinary retention is the inability to empty the bladder completely, which can cause pain, discomfort, and infection. Lithium toxicity can actually cause increased urine output, not decreased.
Normal ranges for blood lithium levels are 0.6 to 1.2 mEq/L for maintenance therapy and 0.8 to 1.5 mEq/L for acute therapy. Levels above 1.5 mEq/L can cause mild to moderate toxicity, and levels above 2.0 mEq/L can cause severe toxicity. Levels above 3.0 mEq/L are considered a medical emergency.
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