A 12-year-old boy with Wolff-Parkinson-White syndrome presents with palpitations for the past hour. His blood pressure is 110/62
mm Hg and pulse is 166 bpm. The ECG reveals a narrow-complex tachycardia. Vagal maneuvers are ineffective. Which of the following is the next most appropriate management? a) Adenosine
b) Cardioversion
c) Procainamide
d) Radiofrequency ablation
Explanation: Wolff-Parkinson-White syndrome is regarded in comparison with prevalent heart condition that makes the human heart to beat rapidly in an unusual way for an interval of time. However, Adenosine is a drug or medicine that is introduced into the body with a syringe after vagal maneuvers we're ineffective to reduce the heart rate of the patient.
Pioneer species include bacteria and lichens that can grow on bare rock and help make soil. Secondary succession occurs in a formerly inhabited area that was disturbed. Soil is already in place, so pioneer species include small plants such as grasses.
Cytokinesis occurs in mitosis and meiosis for both plant and animal cells. The ultimate objective is to divide the parent cell into daughtercells. In plants , this occurs when acell wall forms in between the daughter cells. In animals , this occurs when a cleavage furrow forms.
What is the term that correctly identifies this part of a dermal (skin) cell?
cytoplasm. The interior of a cell consists of a jelly-like substance called cytoplasm. It is here that most of the chemical reactions essential for life takes place. Within the cytoplasm are scattered several organelles.
