HALFPENNY SIGN
\hˈɑːfpənˌi sˈa͡ɪn], \hˈɑːfpənˌi sˈaɪn], \h_ˈɑː_f_p_ə_n_ˌi s_ˈaɪ_n]\
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A s. elicited by auscultatory percussion, said to indicate pleuritic effusion. "The patient is seated, and is auscultated in the dorsal region." An assistant places a sou on the thorax in different parts according to directions, and percusses. The ear of the auscultator listens at the opposed corresponding parts. The healthy side is first examined; then the side with pleurisy, where the note is much higher. A clear metallic sound indicates pleuritic effusion; when this sound is absent there is no effusion.
By Smith Ely Jelliffe
Word of the day
Platidiam
- An inorganic water-soluble platinum complex. After undergoing hydrolysis, it reacts DNA produce both intra interstrand crosslinks. These crosslinks appear to impair replication and transcription of DNA. The cytotoxicity cisplatin correlates with cellular arrest in G2 phase cell cycle.