March 18, 2010

Confusion!!!

Today I was able to interpret the results for the biochemical tests I did for my final unknown in Clinical Bacteriology lab. So far, from my last post, we already know that my unknown is a gram (-) bacilli, catalase (+), oxidase (-) with thick non-hemolytic colonies on BAP.

The biochem test's result naman revealed the following...
  • Triple Sugar Iron (TSI) = A/A (lactose fermenter), gas production (+), and H2S (-)

  • Sulfide Indole Motility (SIM) = motile (), indole (-), H2S (-)

  • Simmon Citrate Agar (SCA) = citrate (+)

  • and Lysine Iron Agar (LIA) = K/A lysine deamination (-)

If you noticed there's no sign on whether it is motile (+) or non motile (-). That's because I'm so unsure. Well, actually I was so sure it was motile when I left the lab this afternoon but when I got home, right now while I'm making my written report, I decided to look at pictures of Enterobacter cloacae and Klebsiella pneumonia online.

I stumbled upon a picture of K.pneumonia on BAP and its so similar to my unknown's growth on BAP.... which is unfortunate and is what made me hesitant because I was so sure it was E.cloacae because it's motile and K. pneumonia is non-motile. But now, looking back, I feel like it wasn't really motile on the SIM tube cause it wasn't totally hazy on the point of inoculation. Gosh...  To think that I even performed hanging-drop microscopic technique just to see the motility and because of a stupid picture online, I got confused. I hate this!!!

March 17, 2010

Clinical Bacteriology

Just wanted to put a record here of my progress in our final unknown in Clinical Bacteriology. We were given a bacterial suspension (the "unknown") yesterday and we inoculated it in Blood Agar Plates and Mac Conkey Agar media then incubated for 24 hours.

Here's what I came up with when we checked it out kanina...  As you can see on the pic below, it has gamma-hemolytic colonies which are very thick and aggregating... probably due to the slightly wet (really bad) BAP we all were using.

[caption id="attachment_127" align="aligncenter" width="300" caption="to be identified for Clinical Bacteriology"]Clinical Bacteriology[/caption]

Don't ask me what happened to the one planted on the MAC... Halos di na makita yung streaking pattern dahil nag-swarm, again probably due to the wet medium plus sabi ni Sir Ems (our lab technician) baka na-contaminate daw. It has clear colonies sa gitna, then sa mga colonies sa gilid medyo nag-pink, so you cant tell anymore if it's a lactose fermenting bacteria or not. No worries naman cause we can determine that sa TSI.

So anyways, back to the BAP. I did Gram Staining as well this afternoon; twice actually. I had to make sure I really had a Gram (-) bacteria because it grew on MAC kahit papano. I think nakulangan ako ng decolorization the first time kaya may naiwang purple cells. Nung inulit ko, without pagmamadali and observing proper staining techniques, nawala naman ung mga false gram (+) cells and pure pink na silang lahat. If you observe the pic below, their actually rod shaped in... uhm... I'm not sure kasi may mga single, may magka-pair, may mga areas din na magkakadikit sila talaga so I cant tell wether the arrangement is single, in pairs, or in clusters. Sabi basta may nakita ka daw ilang humiwalay mag-isa na cells, single na daw yun. Oh well....

[caption id="attachment_129" align="aligncenter" width="300" caption="final unkown's gram stain"]Clinical Bacteriology[/caption]

Anyways, I did the biochemical tests soon after staining. I did oxidase which gave a negative result (no purple end color), catalase positive (vigourous bubble formation), and the Enterobactariaceae tests namely TSI, SIM, SCA, and LIA; the results of which requires 24 hours of incubation so I'll get to that tomorrow.

So, after 2 days of action, the results for my final microbiology unknown are:
  • Gram (-) bacilli with singular arrangement
  • Gamma (non) - hemolytic bacteria
  • Catalase (+)
  • and Oxidase (-)

Will get to the rest of the biochem tests tomorrow and I'll see if I can make an interpretation by then. That'll be all for now. Ciao :D

March 13, 2010

The CMT Cheerios in Action

Got the 3rd place for this performance during the TUA Foundation Week Celebrations last Feb.1... can't complain, we deserve the place we got :D

I was appointed team captain this year and I was really proud of the squad because the newbies from last year, who are now on their 2nd year of service, really stepped up and improved themselves. We also got a lot of really good new members this year.

Here's the vid, enjoy :D

I'm still here...

been a while... or should I say it's been years(!) since I last updated this old blog of mine... I kinda like this and I will keep it. Especially now that everyone else is Tweeting, I will keep on blogging :D or should I say go back to blogging. It's a new way to reinforce my ode of not conforming to what is in and hip or uso.

I do have a facebook though... it's the best and easiest way to connect with friends, classmates, and now, even my professors. Hehehe... If I know you personally, you can add me up as friend, kung hindi, then dont bother.

Anyways, I will try to post entries here more regularly now, I've been meaning to blog again for quite some time now and finally here I am :D

Just wanted to share my still humble Doraemon collection. In case you didn't know, Doraemon is my favorite cartoon character.

[caption id="" align="alignleft" width="395" caption="12 items after about 5 years..."]Doraemon[/caption]

As for my next post, you can wait til next year.

JOKE.