PubMed Health⌕ Search

Biomedical subjects

B L Andrew

Publications and source records attributed to B L Andrew.

18 recordsLinked to original sources

Patient advocacy in the postanesthesia care unit.

What does patient advocacy mean? How pertinent is the term "patient advocacy" in the PACU? What are the deterrents to deciding to be an advocate? What are the steps involved? What are the legal ramifications? These questions all face the PACU nurse when she considers assuming the role of patient advocate. In this article, the author addresses these concerns and offers suggestions on the steps to follow when fulfilling the advocate role.

Humans↗

Some observations on the efferent innervation of rat soleus muscle spindles.

In the small segmental tail muscles of the rat beta fibres provide exclusively the dynamic fusimotor control, while gamma fibres provide exclusively the static fusimor control. The present experiments were made to investigate the fusimotor innervation of spindles in a large muscle of the rat, the soleus, and thus to determine the occurrence and significance of beta innervation in this muscle. Our results have revealed no case of beta innervation in the rat soleus. As a consequence of our experimental method, however, we would not claim that beta innervation does not exist in the soleus, only that it must play an insignificant role relative to that seen in the tail segmental muscles. Investigations of the fusimotor innervation of eight spindles were sufficiently complete to warrant detailed illustration. The number of gamma fibres ranged from two to four. In every case the slowest conducting gamma fibre was dynamic. However, the conduction velocity spectra for the static and dynamic gamma fibres to rat soleus overlap to such an extent that it is impossible to use conduction velocity as the sole guide to functional gamma fibre classification. The pooled results from the eight spindles fully investigated provide a ratio of static to dynamic gamma fibres of approximately 1:1. Other evidence discussed in the paper suggests that in the muscle nerve the ratio is considerably higher. These differences are reconciled if the dynamic gamma fibres branch more profusely and innervate more spindles than do the static gamma fibres.

Animals↗