#MRPearls The bronchial artery circulation is a relatively high pressured system and is responsible for 90% of life threatening hemoptysis cases. (1/7) @VCU_IMRes#Tweetorial
#MRPearls In contrast, the pulmonary artery circulation is a low pressured system with most episodes of non-life threatening hemoptysis occurring from this circulation. (2/7) @mkashiouris
#MRPearls The initial management of massive hemoptysis should include protecting the non-bleeding lung by turning the patient to the bleeding side. Time is lung in this situation. (3/7)
#MRPearls Of note, massive hemoptysis was previously defined as 200-100mL/24h (hotly debated); however, should consider focusing on additional clinical factors such as briskness of bleed, availability of therapeutic options, and physiologic reserve. (4/7)
#MRPearls Tuberculosis, bronchiectasis, mycetoma, and cancer are the leading etiologies of massive hemoptysis. However, check out this awesome table from @accpchest and @samirashojaee listing other etiologies of life-threatening hemoptysis. (5/7)
#MRPearls A standardized algorithm and checklist of tools will improve emergency preparedness and rapid response to bleeding emergencies. Again, @chest and @samirashojaee provide us with an excellent table. (6/7)
2/CF results from a pathogenic mutation on a single gene located on chromosome 7 that encodes the cystic fibrosis transmembrane conductance regulator protein (CFTR). The CFTR serves as a regulated chloride channel that is important in the viscosity of secretions. @mdlizs
3/The CFTR2 database currently reports over 2k different mutations of the CFTR gene; however, the phenotypic expression of these mutations varies based on the functionality of the gene. The most common mutation is the F508del mutation, which is found in ~ 90% of CF patients.
2/Sweat chloride testing can help confirm the diagnosis; however, in individuals with intermediate results (30-59 mmol/L) further testing needs to be completed. These charts from @CF_Foundation highlights sweat chloride testing results.
3/However, sweat chloride testing can result in false positives for a multitude of different reasons. Here a few common causes:
1⃣Adrenal Insufficiency
2⃣Hypothyroidism
3⃣Panhypopituitarism
4⃣Pancreatitis
5⃣Malnutrition/Anorexia
6⃣Glycogen Storage Disorders
7⃣Atopic Dermatitis
2/A snow globe is a great analogy to discuss and frame delirium with patient’s families. How well the snow is packed at the bottom of the globe can be thought of as predisposing factors. When the snow globe is shaken it represents active delirium from a precipitating cause.
3/Known predisposing factors for delirium include:
1/ Have you ever heard your friendly pulmonologist use the terms “entrapped” or “trapped” lung and were confused about the terminology? If so you are not alone and this is the tweetorial for you! #MedTwitter#tweetorial@crit_caring_MD@lkbrath@VCU_PCCM@PSinkam
2/Let’s first start with some definitions. The term “non-expandable lung” is an umbrella term that is used to describe when the lung is unable to expand to the chest wall in order to achieve visceral and parietal pleura apposition. @AvrahamCooperMD@michellebr00ks@mdlizs